I hoped that you would in fact be amused!

I've made grilled peanut butter and pickle sandwiches, but I just wanted the bread to be crunchy and have a habit of burning toasted sandwiches, so the peanut butter didn't really get more than warm.

I did use your microwave method on the dregs of a jar of peanut butter recently, and am much obliged for the tip. It did work just perfectly.

P.