My WTF moment came from "Beyond the beyond" a PS1 JRPG.
Back then frequent random battles was common but this game just took it at a whole new level. I barely moved from the entrance of a dungeon and I get like 8 to 10 random battles in succession. You finish one, walk a little and then bam! another battle and so fort.
It came to a point it was so taxing. That I just totally gave up and said screw that.