Car Horn Sticking?

It doesn't do it every time, just randomly. I will go to blow the horn and even when I let go of the wheel (where you push for horn) the horn continues to blow. I've been threatening to disconnect the horn altogether but don't believe that would be a wise decision. I feel like it is inside the wheel, like the button sticks. Maybe some glue or something from somewhere has leaked and making it stick? I don't really know how to fix this and am afraid to take the wheel off because of the air bag. Anyone know what I should do or how to fix this problem without disconnecting the wires to the horn?