"Spoiler Alert" is a hilarious How I Met Your Mother episode. I love how the gang reveals flaws of other characters, in which some characters didn't notice, and now they notice those flaws. I love how Lily has loud chewing, Marshall sings about whatever he's doing, Ted always corrects people, Robin overuses and misuse the word "literally", and Barney overuse catch phrases and talks in a falsetto voice. I love how when a flaw is pointed out, you hear the sound of glass shattering. I give this episode a 10/10.