Some things:
a) Yes, it's an old geezer, who apparently has a fetish for throwing people into city fountains, "Mr. Fountain Man from Merseyside". Truth is, he seems to be targeting old-small foreigners or people who can't rely on the police (like that guy illegally selling alcohol in the second vid). So extra- weak and despicable. Last thing you want to do in Barcelona is harassing the locals, especially hardened locals from the adjacent areas to Las Ramblas. Your teeth would fly faster than you could laugh. First guy was clearly japanese or korean, hope he goes to the local police so Mr.Fountain Man gets tracked down and locked away.
b) Anyway, that's what you get for going to Plaça Real (next to Ramblas) in a pre-UCL match day. It's basically the "Hooligan meeting place" for any away team that faces Barça. What I mean is, you're gonna find low-IQ vile drunk hooligans there. Some tourists should know better.
c) Don't film vertical, your laughing is annoying enough, scouse twat