The dreaded wake up call

Roomie Snores? Sister has no job, sleeps all day? Have a Rip Van Winkle in your house? Need to wake someone up PRONTO? No reason to let them off easy now that the Sonic Alarm grenade is out. Complete with 3 separate noise levels, all you do is grab the grenade, pull the pin, and throw. 20 seconds later, anyone near the device will start to cry and squirm around on the floor due to it’s ultra-high noise making capabilities. Goes for $16—and is worth every penny.
"Simply pull the pin, yell an emphatic “fire in the hole” and lob the grenade into the sleeper’s room. After ten seconds a very annoying and piercingly loud noise (there are three volume settings) will blast out from the alarm. That’s not all however, what makes this especially great is that to stop the alarm the sleeper has to find you so you can put the pin back in." If you really wanna torture them, throw the pin away. Thank you people for keeping this out of my father's hands.
Sonic Snoozer Nade