Heh, its not the anime thats stupid. ITS THE CLICHE. I swear there are so many shows which starts like this. --> Boy goes to school, walks into a crowd, slips, falls on top of a girl, and has his hand on her boob, she screams "PERVERT!" she slaps him, he flies 20 miles away, and she hates him for 20 episodes, only to realize it was an acident and fall in love with the guy. IT HAPPENS SO MUCH.
But alot of shows still makes a twist around this cliche to make it funny or feel new :-P