We were overrun by them last year and I had never seen one before. This year we've had a few (a few too many) but not so bad as last. I asked an exterminator what to do about them and he said he didn't have anything that would get rid of them. Just recommended catching them and flushing them or deposit them outside. Said just don't squash them indoors because the pheromones released will attract more stinkbugs and of course make your house smell bad.