A homeless father attacked four railway officials after being caught without a ticket.
Pierre Lindsay, 28, was stopped by enforcement officers at Chatham Railway Station but turned on them when asked to leave.
Maidstone Crown Court heard how he headbutted and bit one man, punched another, elbowed a third and tried to grab the private parts of a fourth.
Prosecutor Daniel Cohen said the headbutt left the victim dazed before Lindsay grabbed his colleague in a headlock and tried to grab his testicles.
Now Lindsay, of no fixed address, has been sent to prison for two years after he admitted four assaults in breach of a suspended sentence.
Lucy Luttman, defending, said Lindsay had wanted to travel to Canterbury to see his child but had no money for food or to buy a rail ticket.
She said he now wanted to change his life and become a "good partner and good father".
When he realised he wasn't going to be able to travel without a ticket he "completely lost control and things spiralled out of control."
She added: "He behaved in an appalling manner and is now sorry for his shameful behaviour. Things just go too much for him to cope with."