Batman on a slow night

It's a slow night in Gotham. The theifs, drug dealers, burglars, rapists, and murderers decide to stay inside for the night. Batman isn't aware of this. He circles Gotham three times without a single cry for help or shady character to tail. It's 45 degrees on a brisk Tuesday night in April. It's not raining and it's 2:30 am. What does Batman do?

Call up Selina?

Meditate?

Continue patrolling?

Fap?

Gameboy Advanced?

Play a guitar?

Play himself in chess?

To do list?

Words with friends?

What do you think?

Mmm, I'd call up Selina if I were him

I'd say he works out or eats a light meal before he continues for the next day.

Probably works out or checks up on his equipment or something

Contingency plans. Duh.

Trains, Reads, Looks into cold cases, Checking the defenses of Arkham

Fap.

Strolls the streets of Gotham playing Pokemon Go