to think the new guy shouldn't have told me I did something wrong?

[swingyourpartnerroundandround]

So he's been at working there for around a month and today he comes up to me and asks to have a quiet word. We work in customer service and I had arranged a collection for a customer the same day which annoyingly had not happened.

Shit happens though and the majority of same day collections do happen and some just don't for reasons such as the driver has been delayed.

New guy came up to me and sucked his teeth and said just want to let you know that you shouldn't do that because same day collections don't always happen and walked away.

Now I actually didn't do anything wrong and when I was new and came across a minor mistake by someone I wouldn't have brought it up with them, as I think it makes you come across as rather arrogant. Aibu?

He's a knob. If he had said something in a friendly/helpful way that would have been different, eg 'what a pain about your order, that's why I try not to book same day collection, they're so unreliable'. But to be honest it wasn't his place to say anything.

I suck my teeth sometimes through sheer frustration with work colleagues but not to their face

If he's not your manager, then he's a sexist knob who thinks that having a penis makes him, by default, in charge of the "little wimmins" who need him to explain to them how to do their job. Even if he's new and you've been doing it since you were weaned.

I would have fixed him with a steely glare and asked him exactly how it concerned him.

Has he been told not to & thought he was being helpful by telling you the same?

Did you tell him that what you did wasn't against company policy & that you were dealing with it?

"I shouldn't do that"

Shouldn't do what?

I don't understand the sucking teeth thing, but how new he is or the fact that he is male are both irrelevant as far as I'm concerned.

Either he is in a position to tell you when you've made a mistake, or he isn't. He doesn't sound particularly polite, but if he's your supervisor or similar, fair enough to bring it up. If he's just a colleague doing the same thing as you, none of his business by the sounds of things.

Is he your line manager? I think that's key to whether or not YANU.