This is the worst. Back in my help desk days, was working at a construction company, so we expected a lot of damage and failures from being on jobsites, no big deal.

Laptop came in with a non-functional keyboard and some other odd, flaky behaviors. The user was adamant it hadn't gotten wet, dropped, or otherwise damaged.

I was young and naive, so I believed him. Started the usual software diagnostics, driver updates, etc. After all of that fails, finally pull the keyboard out to replace it (back when you could do that) and discover.... coffee stains!

Which is not to say a screen should crack from a dorito, it absolutely should not.