>> larry: do they fly and come back to you? >> yeah. >> larry: are they trained? >> sometimes they fly 500 miles and they come back. that's just the pigeon world. it's difficult to explain to a person. >> larry: it's also difficult to explain the world of mike tyson. we'll be right back with the former champ. don't go away. >> i was with some friends of mine, skipping school, and some guys came up to me and wanted to rip me off. i didn't have anything they said do you want to fly birds and i was the little gopher chasing the birds from roof to roof and building to building. i didn't know. i thought it was cool having birds. and then as i got more and more educated, this is what i wanted to do.