Strangely Microwves are the one item where I'm not very pro Panasonic.. There have been only two microwaves on the market which truthfully scared me.. one was a Panasonic and to be honest I am not sure if it was really all that bad (I could see light entering the lower rear of the cooking chamber from OUTSIDE the cabinet.. if light can come in, Microwaves can go out) (the other is an LG fire hazard.. Proved it too, thankfully when I was NOT at the office (Dang thing caught fire))
Normally Panasonic hardware is tops, in fact it tends to be "More than you pay for" (That is a 100 buck Panasonic device would sell for like 250 if someone else made it)
However, in this case I am reminded that many Microwaves these days are computer controlled, and there are five ways to BOOT a computer.. I recommend method five (NOTE: THis applies to WIndows as written)
1: Cold boot (Also applies to microwave) When you turn it on in the morning
2: Warm boot (Ctrl-alt-delete twice, Start, Turn Off, Restart)
3: Soft boot: "Do you wish to restart now / Later ?")
4: Hard boot.. My other computer has a genuine reset button
5: Steel toe boot..... (Recommended in this case) That way you do not hurt your foot.
Sorry about the liquid on your keyboard.