Like most, I have ridden in there for the benefit of one of our equines. I once rode from nothern Illinois to west of St Louis with a very nervous Arab mare who had never been trailered in her 6 years prior to us buying her. It did help her to have me there but it sure didn't help me much! It was rough and noisy!
I just made the trip to the vet's office last week with a mini who we thought had a broken leg! We couldn't get our regular vet to come to us so we hauled to one of our other vets which, thankfully wasn't too far away. We have a 24' trailer with 2 10' sections and a mini with a hurt leg needed someone to help steady him. I rode on my knees and held him under my arm and against my body. My husband drives very nicely for the equines but the trailer was rough and noisy! Best news here: the leg was NOT broken!
StarWish/Colleen