Auto parts stores usually charge a small fee now, though.

What model Telguard did you use, the T-700 or something newer?

Exactly, it's like telling someone to lock their door but never explaining about burglars. I used the same basic password for everything until my old email got hacked. Now I use a password manager and it's a total game changer, no more trying to remember which variation of "Fluffy123" I used where. That moment of panic when you realize how flimsy your security has been is what finally makes it click.

You'd really leave a security hole open for weeks?

Honestly, people get so deep into this stuff. It's a pipe at a slight angle. I'm sure it works fine, but @caseyc30 comparing it to a coffee grinder is about right. It's just moving air, not rocket science. My uncle's old forge just had a hairdryer hooked up to some stovepipe and he made plenty of decent stuff. Sometimes a simple fix is all you need.