my stupid person story was similiar...I was in a department store in a mall that had ceiling to floor glass walls and one of those biig open doors...so I just paid for something and walked smack into one of the glass at full speed...turned around, sank to the ground and started laughing at my own stupidity...the clerk thought I was crying...

My puppy hasnt done anything really dumb...but my cats used to climb up the screen doors to escape him...and they would get stuck and hang there between the glass and the screen by their claws until one of us pulled them out.