So if I dump a glass of water on my computer and go to sleep with it in my bed and it burns me that's somehow the manufacturers fault? You know how future customers can prevent this? Don't pour water on your phone.
If you accidentally spilled water on say a MacBook, then went to sleep and woke up with burns, then yes. However if you did the same with an iMac it's likely you have issues and perhaps a very strange sexual preference, not sure how that would hold up in a court of law.