Hey all powerful GD. Got told this joke today, and remember seeing it on the TV at some point, or in a film. Can anyone remember? Tried google repeatedly but no luck 
An old man was telling a group of college kids about his safari adventures. They all listened completely mezmorized by his stories.
"...we were all having a horrible trip."began the old man,"We hadn't seen anything for days. I sat down by a tree to take a nap, when all of a sudden a gian lion jumped out of the bushes ROOAAAAAARRRRRRRRR!!!!!!!! Well, I just **** myself."
"Wow" said one of the kids, "I would probably **** myself too if a giant lion jumped out of the bushes and roared at me!"
"No..." replied the old man,"just now... when I said roar. I **** myself... thats uh... thats embarassing."
There was an old man telling it to the camera or something, but I can't find where it was from which is really annoying me!
Please GD, your my only hope!

An old man was telling a group of college kids about his safari adventures. They all listened completely mezmorized by his stories.
"...we were all having a horrible trip."began the old man,"We hadn't seen anything for days. I sat down by a tree to take a nap, when all of a sudden a gian lion jumped out of the bushes ROOAAAAAARRRRRRRRR!!!!!!!! Well, I just **** myself."
"Wow" said one of the kids, "I would probably **** myself too if a giant lion jumped out of the bushes and roared at me!"
"No..." replied the old man,"just now... when I said roar. I **** myself... thats uh... thats embarassing."
There was an old man telling it to the camera or something, but I can't find where it was from which is really annoying me!
Please GD, your my only hope!