A man on a train is eating prawns and throws the shell's at this woman,when he

[but i love you]

has finished them he screws up? the bag and throws it at her,the woman calmly opens the bag and puts all the shell's into the bag and throws it out the window,the man said why did you do that,she said i am calling the police when we stop and saying you sexually assaulted me,he said why should they believe you,she said i will tell them to smell your finger's