imagine you are looking at a microwave.
see the little bit where the time is displayed? see how there's a bit of perspex about 5mm in front of the clock bit? OK now explain to me how a bug could crawl into that little space and be STUCK in there......
maybe the bug was born in there, and the egg was planted during the assebaly process.
Or its a microwave terrorist.
Or the bug crawled in there out of a meal you where reheating
or the bug is just a repeair amn fixing the clock.