A young man and an old man were fishing on a pier. The young man started telling the old one that the night before he caught a trout that was over 3 1/2 foot long.
The old man replied “Oh yea, well I was here 2 nights ago and I hooked something huge. After a 30 minute fight I finally got it up and it was an old lantern and the thing was still lit.”
The young man said “Your lying. I can’t believe that.”
Then the old man said “I’ll tell you what, you knock a couple of foot off your trout and I’ll blow out my lantern.”