I (used to) store my coin box keys on top of the back box. I was kicking the snot out of HS2 last night, ball 1 was approaching 400 million, and I am playing um...physically? I managed to shake the keys off of the top of the machine and they slide down the glass, RIGHT UNDER THE FRONT GLASS COVER!!!!!!! I have tried to get them out with a variety of tools. Sigh.
However, since I still have to replace the side rails , I am going to try and take them off (enough) to adjust the glass and get those darned keys. If this is a really bad idea, please let me know!!
And, I no longer store keys on top of the back box.
$$ Lessons are so disheartening......