Mental note... if you wish to KEEP your friends, do NOT sneak up behind one of them at the gym and yell, "SCHAFER, YOU'RE SLACKIN'" in her ears.
She might SCREAM, and nearly fall off the stationary bike she's riding. And her heart rate might accelerate to the point where she passes out. And then the gym employees might have to call 911 and then escort you from the building...
Oh. Wait. That didn't happen.
But, I did yell, and my friend Sherri did scream. Rather loudly. Loud enough to turn all heads, as a matter of fact.
I think she should thank me for getting her heart rate up, don't you? :) That is, if she's still speaking to me. I do know this, I'll be watchin' my back at the gym! :)