In the case of Deen v. Gulf, Colorado & Santa Fe Railway Co., the U.S Supreme Court was tasked with determining whether a railroad company could be held liable for injuries sustained by an individual who fell from one of its moving trains. The plaintiff, Deen, had boarded a train operated by the defendant railway company and subsequently fell off while it was in motion due to his own negligence. He suffered severe injuries as a result and sued for damages on grounds that the railway company failed to stop or slow down after he had fallen off. However, both lower courts ruled in favor of the defendant stating that they were not responsible since there was no evidence showing they knew about Deen's fall at any point during or immediately after it occurred. The Supreme Court affirmed these rulings concluding that under common carrier liability law - which requires carriers to exercise utmost care towards passengers - this duty does not extend indefinitely once someone has voluntarily exited (or involuntarily through their own fault) from their mode of transportation without notifying them directly or indirectly about such occurrence.

The dissenting opinion in the case of Deen v. Gulf, Colorado & Santa Fe Railway Co., 1956, argued that the majority's decision to uphold a lower court ruling was incorrect because it failed to properly consider the evidence presented by both parties. The dissenting justices believed that there were significant factual disputes regarding whether or not the railway company had been negligent and if this negligence directly caused Mr. Deen's injuries. They contended that these issues should have been resolved by a jury rather than summarily decided upon by judges in an appellate court setting. Furthermore, they disagreed with how certain legal principles related to employer liability and contributory negligence were applied in this case, arguing for a more expansive interpretation of these doctrines which would favor employees like Mr. Deen who are injured on-the-job due to potentially unsafe working conditions.