BGP Homing Question

[Rick Lowery]

If someone owns their own /20 which they received from Arin back in the day and they want to subnet and use part of it (/24) in Europe. Would their be any problems if the wanted to advertise the North American issued space from a European AS? I know they would not be good Internet citizen, but if they needed to do this for a temp basis does anyone see an issue?     Thanks,   Rick