Can u awnser this riddle ?

there is a kid td with his dad at the top of a building thats on fire ... then the fire department comes and one of the fire men yells Thats my son !! and points to the kid with his DAD at the top of the building. Soo what is missing here ? who is the fireman ? is the fire man misstaking the boy ? is the fireman and the boys dad gay ? Well it wasn't anything i just said SOO CAN U FIND OUT ????