Pregnant lady felt threatened by a strange man on the bus until he gave an unusual explanation

A heavily pregnant lady got on a bus one day. She was sitting down when she noticed the man sat across from her was oddly smiling her way.
Feeling a little freaked out, she moved to another seat.
This time the man’s smile turned in to a full blown grin. So she moved seats again, trying to get away from his creepy presence.
Somehow, he seemed even more amused.
When she moved for the fourth time, the man burst out with uncontrollable laughter. Afraid and infuriated, the pregnant woman complained to the driver and they had the man arrested.
The day of court finally arrived. The judge asked the man what he had to say for himself.
He replied: