The recently celebrated festival of Rasksha Bandhan brought back some fond memories from our childhood. Well it was not much different for a few Bollywood personalities too. In fact action star Akshay Kumar decided on giving his fans a sneak peek at his funny side with his sister Alka. Posting a video of themselves on Facebook, Akshay Kumar posted, "Here's something spontaneous on #RakshaBandhan with my partner in crime since childhood, my sister Alka. We are a different kind of crazy grin emoticon Here's to never growing up!"