I'm glad to hear that I'm not alone in the mistake department. If done a few others, luckily not too many and far appart.
I think any of us that use D'versibits (6 foot long drill bits) have have a mishap, or 2, or 3....
A couple of summers ago I drilled up through the floor above, it turned out to be 100 year old heart pine!
About 15 years ago I stepped through a ceiling from the attic after being in the 150 degree+ heat too long.
