[plug] Hot and bothered CPU hankers for cool breeze

[Craig Ringer]

> To be reasonably fair to yourself, you should consider wearing
> hearing protection if you're exposed to noise levels about 75dBA for
> more than 8 hours a day. Workplace regulations, IIRC, require it
> above 85dBA, based on an 8-hour exposure average.

I wear earplugs at work (as I'm in here with the servers), despite the 
noise not being generally "all that loud". I suspect it's safer to wear 
them anyway, since I work in here a _lot_ and there's a lot of fan + HDD 
noise.

Earplugs also help me retain my sanity here ;-) though don't, alas, 
offer the option of "mishearing" any "my email doesn't work" questions :-(

Craig Ringer