Just this week I was trying to talk my boss out of using clip art in a Powerpoint she was doing... Professionals should NOT use clip art. Anyone over the age of 13 should NOT use clip art.
I made it so all the pictures spiral and then come up*
*May be a lie
Edit: There is a good part to that story. It's that by talking her out of it and taking over making it less boring I got to fiddle around with my tablet all week :)
im currently going through a loooooad of old files at work and one of them had a companies portfolio - all of it using badly chosen clip art, random fonts and bad photographs from random photo gallery sites. i laughed a lot, then threw it in the bin