I took on work for a firm that had recently let go of their entire IT staff for constantly going over budget

Me: It will be about a half hour to an hours worth of work. 

Client: That’s outrageous! Our last IT crew could do it in five minutes!

Me: But you said your last crew always went five to ten times over their budgeted time and cost. 

Client: Six to twelve times. 

Me: Uh, yeah. That does seem more accurate. 

Needless to say, I didn’t stick around.