Well he could just have a toilet fetish and get a kick out of flushing a stranger's toilet. Just hypothesising here, guess we'll never know the true reason!

That's possible, maybe he was trying to get rid of drugs or something and asking to check/use someone's toilet would be a good opportunity to quickly dispose of them in someone else's toilet rather than flushing them down his own 🤷‍♂️

Please re-edit with some punctuation, I nearly passed out trying to read that in the same breath without stopping.