I remember being in Albuquerque back in 1996 for the hot air balloon festival. Hundreds of balloons doing a mass ascent first thing in the morning is quite a sight - especially as the wind drifted them all across the Albuquerque International Airport !
We were delayed waiting for all to be cleared up, but didn't mind a bit - it was a hell of a laugh watching ground crews chasing balloons all over the place !