These poor lil fellas can't quite figure out how to get past a rope blocking their path.

 

I kind of feel like a jerk for laughing, but I can't stop.  I love how they just keep going at it one at a time, as though they keep saying   "dude, you try it"   "I dunno, Mike tried a second ago and fell on his face"   "yeah, but Mike's stupid, you'll be better"   "ok I'll give it a shot"  *whomp*  "DAMMIT!"