Thanos and his soft touch.

They call Thanos the “Mad Titan” for a reason. That guy is a super control freak. He’s willing to wipe out half a planet’s population just to make sure everything is tidy. He might not be the most fun guy to go to the beach with, but one thing is for sure, it’s better to be his friend than his enemy.

One of the things Thanos loves to do is watch over and have control of stuff. So it works out great if you need someone to make sure your keys are safe. Who better to watch over your keys than the Mad Titan himself. They’ll be almost too safe.