In season 10, Sam Winchester was sporting a sling on his right arm for a few episodes. The sling was never actually addressed in the show, but fans definitely noticed it. ... Jared Padalecki was wearing the sling due to an injury he received on the set when he was goofing around with a co-star, according to ScreenRant.

Did Sam really hurt his arm?

Jared Padalecki (Sam Winchester) dislocated his shoulder while wrestling with Osric Chau (Kevin Tran). The writers were then forced to make up a story as to why Sam was wearing a sling in the beginning of season ten. None of the cast or crew members ever expected the show to last as long as it has.

Why does Dean wear a wedding ring in supernatural?

“The fact that I'm wearing the ring is showing that I'm committed to Caelynn and only Caelynn, and I've been wearing it for the past six or so months,” Dean added, explaining that he's in a “domestic partnership” with Caelynn.