United Dairy Farmers

Been going to this udf for many years. I'm there at least twice a week. I always get a fudge nut sundae shake. The staff has always been amazing, but today was different. I'm guessing the woman who was there today was a corporate employee or at least some kind of manager. I told her I'd like a large fudge nut sundae shake. She proceeded to tell me no, that putting anything that has nuts cannot be put in the blender. That it would ruin the blender. THE BLENDER?! So obviously I was quite upset by that, so I left feeling perplexed and without my shake.