Bats groom themselves by licking their fur. Rabies is found in the saliva of the animal. If you touch a rabid bat who just groomed them-self, the rabies can transfer into your system through micro cuts found in the skin on your hands. Why should you never hit a bat with a tennis racket? If a bat is hit with a tennis racket, the saliva found on the bats fur due to grooming can be aerosolized and contracted.
To learn how to capture a bat visit:
ww.dnr.state.mn.us/livingwith_wildlife/bats/removal.html