Friend had a go at me over a can of Diet Coke

I'd expect better of my 8 year old to be honest. I doubt your self-absorbed behaviours on the weekend began with the diet coke.

So you think that everything left over from a buffet should just be thrown into the bin? Why not open all the left over cans of Coke? And unwrap every After Eight and piss on the leftover sausage rolls? I'm angry and it wasn't even my money you wasted!

I'm on your friend's side. It is a waste and I'd have said similar.

so rude of you! I would have thought/said the same. Unless this is a reverse

Sorry but it was rude, inconsiderate and entitled. Glad your friend called you out on it to be honest, might teach you a lesson your parents didn't manage to.

I probably wouldn't have said anything, but you friend was in the right. You sound rather rude. Yet another OP who finds the majority of posters don't agree with them, but still insists they are in the right. What is the point of this??? Someone paid for that can, you opened it with no intention of drinking more than a sip, and then left it for your friend to dispose of - and you can't see what is wrong with that

If you act like a child expect to be treated like one, and your friend had no need to apologise.

Because you WERE rude. You took a can of soda, opened it, took one sip and then discarded it to the side. Obviously, you felt there was nothing wrong with doing that. You got all in a tither because the host called you out on it. My "comparison" stands, even if it isn't what you want to read. Especially when YOU brought up the BBQ/buffet scenario.

You are annoyed because she talked to you like a child? You acted like one, so why are you upset?

I feel bad for your friend apologizing to you when she did nothing wrong.

Did you do the following normal things to do op..

Bring something to the bbq. A pudding for example. A bottle of wine too. And a present for the host- some flowers or chocolates?

Then the morning after did you help clean the mess? Again, normal for a friend to do who's stayed over.

Did you thank her profusely upon leaving?

Do you plan to reciprocate?

The above four things would be the basic norm of etiquette. I'm guessing if you've got this long in life without realising it's really fucking rude to open someone's can of drink, take a swig and just leave it; then you might not also know basic etiquette.

Based on your responses you’re coming across as a very rude and entitled person. Do you acknowledge at all that what you did was not great and your friend had a point?

the rudeness was the opening, taking 1 sip, and then leaving it

ffs - if you cant grasp that then there is no hope for you

I can imagine after having a party and a few people stay over she was not at her best - in normal circumstances she prob would have thought what she said and not said it. I think most people would have thought what a waste and also bit their tongue. I think it’s interesting your take away is you are annoyed at her - rather than agree with her you were being thoughtless and wasteful.

Oh, and are you going to message your friend back to say no apology is needed and you’re sorry for being so wasteful, it was thoughtless etc?

But seriously, why would you open a can when you didn’t want it? Someone paid for that. Someone could have used the whole thing. It doesn’t matter if it was for a party; it’s still wasteful and just stupid behaviour. Why did you open a new can when you didn’t even want it?

This is such a nothing! And she apologised! OK maybe it was a harsh comment and you were taken aback by it but she already texted to say sorry. So what is the issue?

Those who say she behaved like a child, are not being fair on children.

I honestly think this is one thing, that surely most people just know you don't do.

I don't think my children would ever have done this, even at 3. Even if they say took a bite of something they didn't like, they have known to put it in the bin.

I have never seen anyone be do this, and my jaw would be on the floor if I did.

There are certainly some talented contortionists on this thread, bending themselves into all sorts of shapes to stick up for the OP 😁

I agree. I think in a moment of prior-late-night weakness, she snapped at something she would usually bite her tongue about.

Rude and wasteful. YABU

I guess she spoke to you like a child because you behaved like one…..

I originally thought it was a reverse. Now I think it’s just a ‘wind them up and watch them go’.

Totally agree with your friend. What a complete waste.

This is definitely a reverse.

The real sipper would likely say something vague like "I had some of it and didn't want anymore".

The fact OP has openly admitted it was only a sip makes me think reverse. Or OP is just shameless.

So, you got to a buffet/BBQ, go up to the table, grab a hamburger, take a bite out of it and then put it down? Grab a slab of ribs, take a bite and then just put the slab down and walk away? Fill a plate at a buffet, take one bite out of each thing and put the rest down as waste?

You could have opened the can and poured a couple of sips into a cup or asked if someone wanted to split it with you and poured what you wanted into a cup, handing the can to the other person.

OP is too busy being selfish and entitled.