Be Prepared Ahead of Time/ Be Careful What You Bite Into

This crab had his shell prepared ahead of time. This snake thought he'd found an easy meal. The snake got his fangs caught in the shell instead of the crab. Eventually, the snake died of exhaustion and the crab escaped. (Granted, I'm assuming that was the end as I did not have time to wait around to see for certain.... just trying to illustrate a point here folks. lol) Regardless, this is certainly not something you come across everyday.