Komodo Dragon Head
Sharon Stone's husband had his foot bitten by one of these. An excerpt from an interview about the incident:
"This was after he'd taken off his shoes and socks?
Oh, shit yeah! So there was that hideous moment where the three of us... It's such a break in reality, it's so inconceivable that it's happening, but there's that moment of stillness where you just stare in disbelief. Then Phil screamed and we heard this crunching sound. Instead of doing what I would've done if a dog bit me or something, shake my leg to get it off, Phil was very clever. His heel was still out of the thing's mouth. He stepped his heel down to pin the dragon. The deal is, they pull you off your feet and apparently then try to eat you."