Three lumberjacks; Sam, Dave, and Ben; are felling trees when a bear approaches them. Sam says "stay back or we'll kill you with our axes!" The bear responds, "woah! I'm a proud vegetarian. I just wanted to offer you all a nicely cooked dinner since you've all been working so hard and are probably hungry."
The three lumberjacks agree since none of them like to cook.
After eating a nice vegetarian dinner with the bear at their campsite, the bear asks if he could sleep the night there. Sam replies with "no way! This is a trick for you to eat us."
Dave says "aw c'mon Sam, the bear has been so nice to us, I'm sure he won't hurt us." After some discussion the lumberjacks agree to let the bear stay the night.
The next morning Sam and Ben wake up to see Dave's carcass in his tent. They both get angry at the bear for eating Dave and kill it.
While felling trees later that day, Sam asks Ben for advice on how to get stronger.
Ben replies "Swing an axe, carry heavy logs, and never skip eating protein at any meal."