LOL don't worry it's just your OCD speaking or maybe a phobia, don't worry! There is no bat that is going to hurt you. But I do suggest that maybe you should talk to someone about this... family member, friends, maybe even a therapist if it bothers you that much. Might I ask how this all happened though? Did you have a traumatic event with bats?
Just keep telling yourself that it's the OCD mind playing tricks on you, believe me it will help a lot.