Overactive horn

[Stroked & Blown]

A few weeks ago during an auto cross, I noticed that my horn would 'flutter' during heavy braking.
It got worse at the event 2 weekends ago where it would honk every time I hit the brakes...got some 'you ****************************' looks followed by laughter when I explained what was going on.
Pulled the horn fuse for last weekend's auto cross.

Yesterday, it started doing it on the street. Every time I hit a pothole or am hard on the brakes the horn goes off. It seems to be temperature dependent.

Has this happened to anyone else?

Any ideas on fixes?

I am hesitant to pull the airbag off to inspect it b/c I don't want to damage the airbag assy.