The wannabe male stripper for the night was with fellow family members who appeared to be proper Liverpool supporters. They were watching Liverpool's training session at Bukit Jalil and were fine up to the moment where the star of the YouTube video decided to openly declare his allegiance to United. Apparently, he stood up among the 38,000 or so Liverpool fans on the night and did something along the lines of kissing the badge. Obviously, he isn't the brightest light in the harbour.
The rest of the tale as you can see, didn't end too well for him and his family.
Update 18 June 2011: As the PC police have waved their censorship magic on the video above, I've now sourced a new video (from a much better angle and video quality). Thanks to Ken for pointing this out and to Ardy for supplying the altenative video.