Because you like Irene Adler in Sherlock

Konata Izumi has a live-now, worry-later view of the world. See them in Lucky Star.

Meat Boy tenaciously throws himself into danger, and when he fails, he immediately gets back up and tries again. See them in Super Meat Boy.

Rayman is a fearless hero who flies into action with a propeller on his head and a smile on his face. See them in Rayman.