Conflicting Theories of my Revy

[WhyIsItUpsideDown?]

Well my revy magically sprang up and cracked the lid! I have two theories:
1.I packed my revy really full and had it laying on the table with part of the lid touching the table.So the pressure finally over came the lid and the thing poped right off the table and cracking on the floor.

2.Stupid newb knocked it over. I think he was looking at my gun.

All this happened when I was 3ft away from it filling my tank. I heard a pop and it was laying on the ground lid cracked in half. Which do you think it is?

[HoppysMag]

newb or accident... i dont think it could just throw itself on the ground... most guns are heavy.

[WhyIsItUpsideDown?]

Well see I have a orange pipe cover on the tube on my revy so thats were I pack some of my paint at the end of the day and ready for the next day, so it wasnt on my gun.