I don't know if this was just a one time thing but I am sure you all know the lake in Ficho is covered in Pokemon and some people even call it Pokemon Lake. I have noticed that some of these Pokemon yell at anyone who hangs out by the lake that isn't a Pokemon. For some reason they hate Digimon more than anything. If you don't know, a Digimon is alike from Pokemon but each person only has one and they are made of data and they came from a computer. One person came to the lake as a Digimon and he was rudely attacked by several Pokemon and yelled at when this guy had done nothing wrong. The Pokemon did this also to a group of 'cave ponies' that weren't even near the lake. I don't understand why these Pokemon feel the need to guard the Ficho Lake from anyone who isn't a Pokemon.
I don't usually RP Pokemon, but to me it's like the warriors clans who think the cave is their territory and they must defend it.
The only thing I can suggest is to block the Pokemon who is attacking you or just ignore them. They'll get bored and eventually go away.