When it's summer and it's hotter in the church than it is outside.
When you have to break the ground off of your good power strip because the church was wired in the late 1800's and doesn't have grounded outlets
If you've ever played the drums with a set of fan handles.
If you've ever made a kick beater out of a wire hanger, a sock, and a rubber band
When there is a set of drum sticks in the piano or organ bench.
If you've had to play for a soloist that by the end of the song had sang in all 12 keys and another 3 that aren't on the keyboard.
When the Leslie volume knob is on 10
When all the churches PA speakers are made by different companies.
When the church is using instrument cables as speaker cables.
When the music is louder than the choir.