Spiders are notoriously lacking in mucus membrane...
And for you guys that think habaneros and jalepenos hold a candle to processed OC, a couple websites: Gourmet Sleuth
Wikipedia Scoville Scale
From the chart
Habanero 10 200,000 to 300,000 SHU
Jalapeno (green) 5.5 2,500-5,000 SHU
Jalapeno (red) 5.5 2,500-5,000 SHU
Some hot sauces named on that Wikipedia site are over 5 mil SHU!! Eee-youch!