No i wouldn't. I'd prank them with 'partly' their greatest fear, but as soon as i know they're ready to quit i would quit. Never prank anyone with their greatest fear unless you're ready to be revenged upon bởi your greatest fear. I would hate to think of my Những người bạn would prank me bởi using spiders, hoặc confining me in a coffin under the ground hoặc somehow making me think i Mất tích a lot of blood.
Story time: Last year, my friend brought a plastic con nhện, nhện to school. We tried scaring people bởi throwing it in their faces and stuff, but they weren't afraid of it. We did it to gifted grade 7s and they told us their friend had a fear of spiders. So we gave them the plastic con nhện, nhện and she went and put it on her shoulder. Then she told the girl there was a con nhện, nhện there and she started screaming then crying. Then the chuông, bell rang, my friend collected the spider, and we went to class. At least we got rid of the girl (she was really annoying and after that, she never spoke to us again).
With their greatest fear? No, this would be dangerous and might drop a bomb in my life. But with the greatest fear, honestly, I would.. I'm a professional trickster. ^_^;