I work with a LAer and once ripped out an entire queen quilt. The customer had brought in 2 quilts to be quilted, one applique and one pieced. They were similar in color, and the longarmer had a "helper" who got them mixed up. The appliqued one got quilted with the pattern chosen for the pieced one, and it wasn't discovered until she went to load the second quilt. So she hired me to rip it out. Don't know that I'd want to do it again!