What kinda pranks will scare your grandpa?

== Leave the man alone! He's had a tough life and doesn't need little snot-nosed brats like you messing with him. He has earned the right to a peaceful later life. If you think otherwise, then I only hope that your grand children turn out just like you, and that you never get a moments peace away from them. Or have some fun. put Duct Tape on the inside of his slippers. cream cheese in his deodorant. put fake tattoos on him while hes sleeping. put poppers under his toilet seat. set his alarm clock to wake him up at 3-4 in the morning. go to Walmart buy a couple $5 alarm clocks. set them to go off at different times, be sure to hide them, under the bed in the closet under the dresser or night stand places like that. as long as nothing gets broken and no one gets hurt pranks are fun.