Customer Negligence
I used to work for Sears and a co-worker told me this story. He sold a top loading washer to gentleman, with a five-year service agreement. The service agreement covered most things except customer negligence.
(The man) came back into the store about a week later, absolutely livid. He was complaining that the washer wasn’t working correctly, it was all off-balance, and the drum was ruined. …
During a long argument between the man, my co-worker and the department manager, the man revealed that the first thing he did with the washer was wash a bowling ball. Apparently he did not realize that would be bad for the machine.
His service agreement, of course, was void after such a blatant display of negligence. And of course, he did the customary vow to never shop at our store again.
Story credit: Reddit / robtheverb13