I think everyone has heard about the anecdote about the engineer, the user and the coke - but anyway.

The user calls the support department: “My keyboard doesn’t work.” Engineer: “What have you done?” The user: “Nothing, it just stopped working!” The engineer comes by with a new keyboard and as he lifts up the old keyboard and holds it against his chest - coke pours out. This might be an anecdote but accidents still happen and if it’s your own stuff then you’d rather fix it then buy a new one. On the picture is part of the PCB from a Linksys WRT54g. Used to be broken - but works fine now after cleaning it.