Hello,
An apparently simple message - Scratch loses his stress-ball and overreacts?
But the idea seems a bit too stretched here, and perhaps a couple of the verses can be cut.
The opening verses are quite similar, so maybe the first verse can be dropped.
The fifth verse also seems surplus, as the following verse indicates a favourite (from a collection).
I like the idea of the trapped air, that chimes with pressure toward the end - and perhaps, if he was under stress, this can be made clearer in the conclusion.
keep on scratchin'...............Philip