Tapping a valve on a 55 gallon drum.

[m16ty]

These warnings aren't judgments about your intelligence, or competence. They are just gentle reminders to think. We all need a regular dose of those sorts of reminders... because, well we forget sometimes.

These reminders also serve to remind the reminder to remember to think too.

The sad results of accidents while working on this kind of stuff are too demoralizing to contemplate.

-Chuck

These warnings are also for other people that may be reading this thread.

There are ways to safely weld and cut on used drums and tanks but I'm not going to recommend it on a public forum.