[1] On Saint Patrick's Day 2008, Ted, Marshall, and Lily plan a board game night, opting out of joining Barney, who dresses in green and goes out alone.
Meanwhile, Marshall and Robin discover the new apartment is crooked, leading to a secret and the creation of a game called "roller luge" to cope with the uneven floors.
Out with Barney, Ted experiences a night where bad behavior seems to be rewarded, including ditching dates, charging champagne to someone else's tab, and considering a one-night stand with a married woman, which ends with him getting punched.
Ted wakes up with regrets and a black eye, reflecting on his actions after hearing voicemails he unintentionally left for Marshall.
[1][2][3][4] Joel Keller of TV Squad described the episode as "above average" and wondered if the show would survive to be renewed for a fourth season.