Bye bye big cactus

This cactus has gotten so unwieldy, I planted it as a baby about 15 years ago.  It's thorns are so fierce they've left me with huge bruises when they've stuck me.  I'm calling the Desert Botanical Garden with the hopes they will take it and transplant it in their huge, wonderful desert spot.  It gets the most gorgeous night blooming flowers in the late spring/early summer.