You know you have been LEGOing too long when Inspired by this webpage on raytracing I was trying to find out whether something similar exists for LEGOing (playing with LEGO). However, I couldn't find any references to jokes like "You know you have been LEGOing too long when you are getting excited about the difference between bright light orange and yellow".

Are you aware of any jokes about playing with LEGO, possibly by people who think that LEGO is for kids only?
You know you have been LEGOing too long when

you have permanent stud prints on your fingers



(That's technically a tattoo pictured, but you get the idea)