So you've done that too eh? I usually do that kinda thing in eliminations though. I've run outta gas, forgot to turn on my co2 bottle, launched in neutral, (my favorite and thank god for rev limiters), had the chute fall out at about 100ft, shifted into reverse at 125mph (don't try that one, REALLY scary and crashes happen), forgot to turn the delay box on, entered wrong dial-in using crosstalk, and on and on......fortunenately I haven't done any of those things in quite a while.
Dparker is correct again, you can't follow everyone's advice. Kinda like machinists, and engine/tranny builders; pick someone you trust and stick with em.
Johnny