If I Was Selling an Xbox That Had the Red Ring of Death and They Ask, What Do I Say?

Mine had it a year ago but i took it in to get fixed and it works great, i'm trading it for an ipod touch but what if i drop it off and he asks if it had the red ring of death before? What do i do, tell him that it did but got fixed?

Suggestion:

they will not ask, they may test it for 10mins then they will be happy with it