MBLAQ's Lee Joon made an appearance on an episode of KBS 2TV's "Happy Birthday" and revealed that he always asks a set series of questions whenever he dates a new girl. He commented that he grills the girl on her past, asking,  "How many times have you kissed with other people?" and "How many other hands have you held?" The girlfriends usually responded with "I don't remember". He continued, "When I ask them to at least ball park it, they always say they forgot and try to move on. How does it make sense that they don't remember actions they've done themselves?" The other female guests on the show were highly surprised and asked why he was curious of such things, to which Lee Joon replied, "Asking about her past just means that I want to know more about her. It doesn't have any other meaning." The guests disagreed, arguing, "You say it's okay now, but it'll become an obstacle later. Leaving the past in the past is the best." The episode will broadcast on November 15th. We gotta go with the guests on this one - digging up your significant other's past this aggressively can only lead to problems. But tell us what you guys think about this below! Source + Photos: Newsen via Nate