I absolutely love Cardiff on match day, but there's no denying you get a lot of banana splits there.
A few years ago, think it was Wales v England in 2015, I was walking down chippy alley with 2 mates when some ginger twat bumped into 1 of them and dropped his chips. He immediately got aggressive and demanded my mate buy him food, but if it was anyone's fault it was his so my mate refused. Next thing we knew he's wrestling my mate to the floor, so my other mate pulls him off him, and the guy turns round and headbutts my mate and legs it. My mate is now covered in blood and so someone called the police. While we're waiting, I see the guy suddenly sprinting back towards my mate, so I step in his path and block him, turn to call to my mate and he sucker punches me. I hit the ground and he runs off again.
By the time the police arrived, he'd legged it and they couldn't find him. CCTV footage was useless so nothing came of it. My mate had to get £100+ in dental treatment (it was actually a lot more in reality but he had a dental plan through work) and I couldn't eat on the right side of my mouth for a week. Fortunately nothing broke/no fractures-ended up getting it checked just incase.
I was pretty wasted to begin with and dazed after getting hit in the head but my clearest memory is the policewoman laughing at me throughout my statement cos I couldn't really remember anything. "What colour jumper was he wearing?" "Blue! No wait...red! No orange...." "I'll just put down it was too dark to see shall I?" "Good idea!"
For a happier Cardiff match day story, my mate was out in his England jersey for a Wales England game. He saw Rhod Gilbert and he went up and said "Rod! You're my third favourite comedian". Rhod called him a banana split before asking him who his favourite two were and then went "yeah fair enough they're much better than me"