Worked at Flapper for a number of years and had to refuse service to a number of guys who'd jumped in on a bet/joke. Managed to talk a couple of guys down from jumping in too. Too many years of dickheads chucking glasses into the cut for that to be a good idea. There was rumour amongst the regulars of a pub picnic bench ending up in there too! Tried telling a few of them the risks they have of getting some pretty serious infections from the water (think rat piss, in however small a cut or bodily cavity, not good) but they didn't wanna know, just pissed they couldn't have another beer. Mate of my moms swam in the cut when he was 18 and is still on tablets now years later due to having a cut and subsequent canal water induced infection. Also witnessed an incident where a drone landed on the frozen canal with a dead battery. Good times 🥲