I had a boss that did that .... wouldn't believe anything I told him, had to find out for himself.  He got narked because flying a rep in from Ireland was going to cost £200+ (at short notice), and he'd seen on the Web that you could do Belfast-London return for from £60.  He even found the site for me, and was very smug to have got one over on me.

"Ok" I said.  "Now put in the actual dates that Rep has to be here".

Tippety-tappety-tap ..... crestfallen boss found that the best rate he could get for the days in question was over £200.  

Did he seriously think that I was going to blow company money for the hell of it on something that wouldn't benefit me?

boggles