Here's a reason to ignore people who give flippant advice (in this case me).  Following is an interaction I had with my co-worker Rod who sits right next to me this morning .

• [Out of silence, a very annoying ringing sound ensues. ]
• Random developer [seeming very annoyed]:  What is that sound?
• Rod [looking down on the floor by his feet]: Hmm… I think that's my UPS backup.
• Me:  It's annoying, make it stop.
• Rod: What should I do?
• Me: Push the button.
• Rod [pushes the button]
• Rod's computer [turns off]
• Rod:  D'oh…Ugh… That turns my whole computer off.
• Me: You shouldn't have pushed that button
• The rest of the engineering team: racous laughter