Mumbai, Jan. 9 -- When we'd bumped into Hrithik Roshan last week, as we were leaving Sanjay Khan's birthday celebrations where he'd dropped in to wish his former father-in-law, we'd commended the star on the recent clips he'd shared on social media of his sons Hrehaan and Hridhaan, demolishing some pretty daunting ski cliffs and slopes with their super-fit dad, on a recent holiday in Europe. Clearly, the idea of machismo and courage runs in the family. Yesterday, Hrithik demonstrated just how the family's men face other daunting cliffs and slopes, with a post about his father-producer Rakesh Roshan's surgery, later that day. "Asked my dad for a picture this morning. Knew he wouldn't miss gym on surgery day. He is probably the strongest man ...