Because you like Samwise Gamgee in The Lord of the Rings

Not a great influence with her classmates, this 13-year-old "cool girl" likes to shoplift, chug alcohol, and snort crushed pills. See them in thirteen.

The vampire that killed Zero Kiryu's family also infected him, and he starts to crave blood, much to his horror. See them in Vampire Knight.

Nozomu's name translates to despair, which is fitting for him. See them in Sayonara, Zetsubo Sensei.

England may cultivate the image of a well-bred gentleman, but he has both the temper and mouth of a seasoned sailor. See them in Axis Powers Hetalia.

A laid-back stoner, Ben Stone wasn't planning on life's ultimate responsibility. See them in Knocked Up.

Ben Barber is ready to show you that he's twice the man you think he is. See them in Ride Along.