It is, it actually happened yesterday. We were shorthanded and I had to jump in a mixer. I was pouring for some contractor that I had never seen before. A little 2-yard building floor. I had to go through an alley and I had a pole on my left, a fence behind my chute, and a fence on my right front fender. Told him that's the best I can do. He asked me how long I've been driving and I said about 17 years or so, to which he responded a real driver could have gotten it in there.
I reminded him that when you're using a wheelbarrow it's a very bad idea to mess with your mixer driver.