I think this was also on Clients From Hell but the full comic is brilliant. The highlights for me have to be:

So this design is perfect, but I’m the CEO so I feel obligated to make changes to feel like I’ve done my job properly.

All hope is lost – you being to fantasize about other careers, like someone who digs ditches for a living or gives sponge baths to the elderly.

And this picture:

nolonger

Absolutely brilliant.