John taught me how to ride a bike during 'Dhoom' shoot: Abhishek

Abhishek Bachchan said John Abraham taught him how to ride a bike during the shoot of their 2004 movie 'Dhoom'. "My mother and my father never allowed me to ride because they were scared...John used to ride with me and teach me. He was unbelievable," he stated. "John said 'baba, just remember. You have to be very responsible'," Abhishek added.