No, I thought you might be telepathic, since you know what they think.
However, the noise level is the same or lower in the cargo area, depending on which cargo the pet is located in. The correct bin is the front bin. Some pets have been incorrectly put in the rear, non climate controlled bin and that is where the accidents that you are speaking of, have occured. When pets travel they are just as safe as you and I, unfortunately accidents happen sometimes and pets die.