1.
First, when Ted explained where he lives:
2.
Every time Robin didn't want to hear Patrice's advice:
3.
When the gang convinced everyone to call Barney "Swarley":
4.
When Ted and Marshall tried to hide the fact that they were high from Lily:
5.
When Robin had trouble making friends:
6.
When Marshall introduced Barney to Slapsgiving:
7.
When Ted didn't know how to spell "professor" on his first day teaching:
8.
When Robin revealed why she actually hated the mall:
9.
When Lily was never without a drink:
10.
When Marshall was stunned that Stella had never seen Star Wars:
11.
When Barney questioned how Ted was ever gonna meet someone:
12.
When the gang held an intervention for Marshall's hat:
13.
When Barney lost the doves before his wedding:
14.
When Barney and Marshall got drunk:
15.
When Ted realized his mom had been lying to him for years:
16.
When Ted thought his mom was calling instead of Robin:
18.
When Barney didn't want to attend Lily's play:
19.
When Lily and Marshall proved to be the best couple:
20.
When Lily, Marshall, and Robin tried to rid the apartment of the cockamouse:
21.
When Ted and Marshall couldn't go more than five minutes without talking to each other:
22.
When Ted had to fix the graffiti in the alley:
23.
When Robin's fake husband moved:
24.
When Ted drunkenly got a butterfly tattoo:
27.
And finally, when Marshall just wanted to know about the pineapple: