My cousin just broke up with his girlfriend, and I told him, "Since your dad owns a moving company, you can already take half of her stuff."
Moving Company Advantage
Explanation
The humor comes from the idea that after a breakup, people often divide their belongings. The speaker suggests that since the cousin's dad owns a moving company, it's easy for him to take half of the girlfriend's stuff, playing on the literal meaning of 'taking half' in the context of a breakup.