Glenn Yong claimed he had an uncomfortable experience at Changi Airport yesterday (Sept 29) while undergoing a security check. The local actor-singer, who turns 30 next month, shared his experience in multiple Instagram Stories. He wrote in his first Story: "Oh c'mon, seriously? Was boarding my flight in Singapore today and going through the usual security checks, and the guy frisking me was unusually touchy. "He literally brushed against my balls twice. Like, what the heck? Is this even allowed?" While Glenn did not share further information on where he was heading to and the purpose of his trip, he later posted a video of him taking…