How many scoville units? As a ex-pepper breeder/botanist, horticulturalist, and farmer, I kind of got familiar with peppers and applications of hot sauce. Most 'super' hot sauces made for humans are around .5-1 million units or so. Police pepper spray and the real bear stuff are typically around 1 to 5 Million units, about what you'd find in the super hot peppers (e.g. Dragons, Pepper "X", Carolina Reapers,...some folks eat those). I have seen squirrels eat peppers that are in the 1-2M units range without issue when the forest mast in weak and other foods are physically inaccessible. That tends to say that hot sauce may not always work as a repellant... Venturing into the world of hot sauce production taught me a few things. Straight up, 100% pure capsaicin (...the "hot" component found in peppers) might; it's around 16 million units. There are issues dealing with it at that level however; I'd rather play with a good fast acting, nerve agent like VX then that stuff...it would be safer.