i thought it was etiquette to split the bill when there's a big party like this.
but went to an Xmas do once, and we'd all been having wine and such, as you do.
bill comes and i threw in £25-£30, summat like that (i was already pretty ripped by then), as did everyone else, i thought, and went outside with some others for a smoke.
some us were headed to a pub afterwards, so we waited for a colleague to come out.
he came out laughing.
one of the most senior chaps pulled out a friggin' cheque book and calculator, and wrote a cheque for exactly £31.71 for both him and his wife.
we pissed ourselves laughing all night.
he did that other times, too, and no one ever wanted to go out with him anymore.
he once offered to share a taxi with me, but i said i preferred to walk as it was free, then waited at the next taxi rank .