I had no pit props with me. Mistaske #4.
1. Don't rely on just one method for securing a car
2. Don't assume the safety circuit works unless you prove it yourself. As years go by, it needs to be checked again anyway. Sh*t happens, and things can break shorted.
3. Don't get in a resdential pit without a pit pipe stand.
4. Block swing doors from closing.
5. Secure the power.
6. Don't trust your safety to anyone's word. Verify for yourself.
