Joseph McKenna, Chicago Rock Island Pacific Railway Company v…
“ It is also the law, having in mind still this first count, that if the employee goes between the cars to effect an uncoupling, he is not chargeable with contributory negligence, that is, a failure to exercise ordinary care for his own safety, by the mere fact of going in between the cars to effect the uncoupling, but he is required, before he can recover, to exercise ordinary care for his own safety after he goes between the cars, and while he is there, endeavoring to effect an uncoupling ”
