One time in the winter, I walked into the office wearing a big overcoat, scarf, gloves etc...and somebody asked "Are you cold?".

"No", says I.

"So why are you wearing all those warm clothes?".

Aaargh!

But by far the stupidest thing I ever said, having resolved a (technical) problem for one of my staff was "See, I'm not just a pretty face".

She says "Who told you that?"

Ouch!

Pete