Even better is when you try to call FSS to cancel a flight plan. Flew into an uncontrolled field the other day and couldn't cancel with ATC due to WX. Landed and couldn't get them on RCO. Called FSS and couldn't get through.

We were trying to find the number for the controlling facility when ATC called the airport to see if we had crashed. Found out later that some other poor bastard was circling to get in. Arrrgh.