strike. in the u.s. alone, venomous snakes bite more than 8,000 people each year. david weathers is a professional snake handler and knows the danger all too well. >> when you handle the snake, you try to have somebody around. >> he keeps dozens of snakes including that venomous cobra, native to southeast asia. it is considered one of the deadliest snakes in the world. david is about to find out why. as he prepares to move the cobra to a new sanctuary, it strikes. >> i literally pulled the whole snake out of the tub attached to my stomach and i felt the teeth sink into me. >> david knows there's no time to spare and has a friend drive him to the hospital rather than wait for an ambulance. >> get me there quick because i'm having a bad head stuffed up and i'm having problems breathing. >> it really depends on how much