Ok here's the formula that works . Spray bottle, 2cups hot water, 1cup vinegar, 1/2 cup liquid soap. Put it in bottle in that order so there's no foam from the soap building up while pouring, then you can shake away. The little buggers hate it, if they rollover on their back one more squirt does them in. The kids&grandkids can have a field day! No smell because ur not squashing them! Plus, a few will do a St.Vitas(?) dance while going to there just reward. No gunshots just total silence while doing a total massacre with ur spray bottle!!!!!