Sleeveless & Backless

A TC in a train fines 400 for no ticket.

He charged 1st girl Rs 300 who was wearing sleeveless

Rs 200 to 2nd who was wearing sleeves &backless

Rs100 to 3rd who was wearing sleeveless, backless and a mini skirt

He charged Rs 0 to the 4th one...

Why??? *

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

*

U Dirty mind...

She had the ticket!!!