One of my all time favorites. 
Lol. This is one of mine. I just quoted it at dinner last night as a matter of fact:
The far side is the best comic ever. But such comics as “pearls before swine”, and “f minus” are also great. Even dilbert deserves some sort of award!
I used to read one everyday before school. Never saw one I didn’t like. Gary Larson is brilliant and surreal. I loved starting my day that way.
I think Larson has/had an ass fetish. Most human characters in his drawings have bubblebutts. lol.
I refer to both of these on a regular basis. Anytime any one of our family tries to push or pull a door when it’s clearly marked the opposite of what we’re doing, I always mutter “school for the gifted.” And anytime my husband starts yammering at one of the dogs like they know what he’s saying I’ll say “blah blah Marty blah blah” or “blah blah Bella blah blah.” That usually reminds him that they don’t have a clue what he’s saying.
I don’t have time to find the image, but my favorite has a guy and gal each at home after their date. The guy is thinking- “Did she like me? Should I call? Was it good?” The girl is lying on her bed thinking- “I think I really like vanilla.”
The caption reads- “Same planet. Different worlds.”
Another great one. 
A fair warning to all, do not read your The Far Side collection right before going to sleep, as your dreams will be really, really, weird.