Ash Vickers of Megacynics drew this in remembrance of Harold Ramis. She explains how the illustration came about.
When I drew this, the scene popped into my head of Egon actually wanting to know what it was like to go into the trap. I never meant to imply that they'd stick him in the containment unit with the other ghosts ;P. He's smiling and saying good-bye like "no... it's fine, guys. I'll be fine!" More importantly, I was just sad today after finding out that Harold is gone. I just wanted to draw something in tribute to him and this is what popped in to my head.
Harold Ramis, who portrayed Dr. Egon Spengler in Ghostbusters, died yesterday at age 69. -via reddit