CO said:

Back to the Future III is a perfect example of this. Now BTTFIII is an OK sequel, but they have the typical 'Marty wakes up next the Lea Thompson character and doesn't know what year it is...." or "Marty had to evade Biff or Griff cause he insults him and Biff/Griff usually ends up in horseshit.

I think the reason of this is the writer feels you know the characters at this point, so they know its an easy laugh to bring up something from the original movie just in a different setting in the 3rd movie.

I brought this up in the post right above yours.

I do think that BTTF3 was painted into a corner somewhat by BTTF2. It was sort of damned if you do & if you don't scenario.