I dropped my cell phone on the ground and one of the little plastic tabby things that holds the battery cover on got bent like 90 degrees from where it should have been sticking out. So the battery cover no longer sat securely on the phone and wibbily stuck out awkwardly at one corner. But! With a screwdriver and pliers I fudged the tab back into place. I was sure the tab was going to snap off and I was going to have to buy a new part or something, but it didn't. I am really impressed at how plastic, as a material, is... how do you say... susceptible to non-reversible changes of shape in response to applied forces. They should make up a word for that.