Well in that situation, since I would have to quit playing with my right hand to hit the buttons, it would be easy enough to reach over to the left side and hit the ending. At least it is the last button on the right (of the buttons on the left side).
The problem I had is that I play a lot of fills and all the leads with my right hand. It was a far bigger problem to stop playing with the right hand than the left for me.
I even play along with the endings.
Don