To spike the milk?

[PeachBellini123]

Due to a dairy intolerance I buy almond milk to have at work, which is kept in the office fridge. Have realised over the past couple of weeks it has been going down very quickly. I caught a colleague using it and did say 'oh can't you use the office milk?' They looked a bit guilty but not sure if they've stopped using mine. And I think it must be more than one person.

Would it be really bad if I spiked the milk to teach them a lesson? Having my name on it hasn't helped.

It would be something safe to consume but taste bad...

So I bought a new one and stuck a note on it saying "I might have pissed in this"

You should do this, OP. Definitely.

I recommend putting it in a baby's bottle. People are less likely to borrow it from there.

Put a sticker on it saying "I've spat in this".

Be careful - someone would be bound to add, "So have we."

Spike it with Salt - won't show up as being a different colour or being any different until they taken a drink.

Really bad that someone has been using your stuff especially when you've pointed out that it's due to a medical reason!

Put some white or magnolia paint in the carton, watered down.

And then as others say, put the milk in a baby bottle.

I love all your ideas I think putting it in a baby bottle/plastic bottle is the way to go...and maybe leave a bit in the cartoon with some salt in

I had this with my no added sugar squash (I'm diabetic). Work only supplies sugary squash so I took in my own, labelled it, do not use etc - and everyone knows about my condition - and yet I still come in after a day off and it's been used up! I have to keep one of those mini drop ones in my bag if I want squash now but it's stupid I've had to resort to that!

Where I used to work, my milk would always go missing and I was always tempted to add salt to it!

I think you should add the dye pp mentioned - if the thief complains just say that u like the taste of the dye

would it be really bad to swap it for Milk of Magnesia?

If they pour it and find it green then wouldn't they just chuck it away? I would buy an alternative bottle like a slim fast or ready made formula and decant into that.

Plus an email round to everyone.