Am shite at remembering jokes but my alltime fave joke is good enough to be worth a repost given it's been a few years since I first posted it...
Biology teacher gives the class a spider each, tells them to take it home and see what they can discover about arachnids. Next day class returns...
Teacher: So, Billy, what did you learn about your spider?
Billy: I learnt that spiders have eight legs, miss.
Teacher: Well done, Billy. What about you, Timmy? What did you discover?
Timmy: I discovered that spiders spin webs, miss.
Teacher: Very good, Timmy. And you, Johnny - what did you find out?
Johnny takes his spider out of the matchbox he's been keeping it in and puts it on the table then calls to it, "Here, Spidey! Here, Spidey!" and the spider scuttles across the table into his hands. Johnny puts the spider back on the table and... "Here, Spidey! Here, Spidey!" Once again Spidey scuttles across the table into his waiting hands.
Teacher: Yes, Johnny, that's very impressive but what did you learn from this?
Johnny: Hang on a minute, miss.
Then immediately pulls all the spider's legs off and places it back on the table and calls to it again: "Here, Spidey! Here, Spidey!". Spidey stays put. "Here, Spidey! Here, Spidey!". Spidey moves not a muscle.
Teacher: Johnny! That's so cruel! What can you possibly learn from such a vicious act?!?
Johnny: Well, miss, I learnt that if you pull all a spider's legs off it goes deaf.