In the men's bathroom at the SAN Sky Club there is less space between the bottom of the faucet and the sink in the left sink, so that every time I wash my hands they touch the actual sink. Which means I then have to wash my hands in the right hand sink to get the sink residue off of them. Unfortunately I forget this every time.
I looked at them for a good two minutes this morning trying to figure out exactly where the difference is. The faucets appear to be at the same level so I can only conclude that the right sink is deeper than the left although they appear to be the same size.