According to a new study, interrupting isn't just impolite, it can be downright dangerous.

Researchers at Michigan State University found that even a "short" interruption can sharply lower your accuracy rate.

They found a simple three second interruption can double your error rate - something that could prove to be deadly in the case of a doctor or airline technician.

The lead researcher says, "Our health and safety is, on some level, contingent on whether the people looking after it have been interrupted."

Nice to know, huh?  Think about that the next time you visit the doctor or hop a plane to fly somewhere.

And in the event my wife is reading this - Suzette, please don't wake me when I fall asleep in the recliner at night watching TV.  You're lowering my accuracy rate!