Kal Penn, known to millions of viewers for his role as Dr. Kutner in the iconic medical drama “House M.D.” and for his hilarious adventures in the “Harold & Kumar” film series, recently lifted the veil on his personal life, sharing an unusual fact about friendship and a passion for body art. On his Instagram account, the actor posted a tribute to Scottish stand-up comedian Daniel Sloss, calling him the only person in his circle capable of adventurous deeds at any time of day. According to Penn, Sloss is that rare type of friend who not only agrees to a spontaneous “Hey, wanna get a tattoo right now?” offer but does so regularly and with unwavering enthusiasm.