SoundBarrier, you beat me to it!
From experience:
1) Say "fcuk"
2) Carb heat
3) Mag check
4) Fuel - check pressure & tanks
5) 7700
6) land
(I got priorty cleared to land at wellington, no less than three Air NZ planes lined up waiting to enter and roll while I trucked on in in my little PA-28...
I still remember one of them responding to ATC's "hold at Alpha for light aircraft on priority" with "What??"
)