Admit it: Once in your life you've...

[SnowoFall]

Actually no.

Admit it, once in your life you used the excuse of having to go somewhere to not do homework

[anywhere]

Nope
Admit it, you always say the alphabet in your head because you forgot what letter comes next

[..thunder..]

ALL THE TIME.

Admit it, you think back at memories of your younger self and cringe.

[watermelon.]

Yep.... All the time

Admit it, once in your life you've gotten sick and pretended like you were fine

[SnowoFall]

Actually yes, it was a rehersal for the school play and then I had to go back home cuz I was really sick.
Admit it, you watch youtube daily or every other day.

[AnneBoleyn]

Yup.

Admit it, you've broken out in song in a crowded place.

[two2sided]

Actually, yes. I've began singing Turn Down for What at the lunch table and starting a half-party X3

Admit it, you've borrowed something and forgot to give it back, then gave it back a long time later.

[SnowoFall]

No. Unless you remind me, I usually don't give stuff back (yes, I am evil)

Admit it, you had (or have) this one teacher that you'd rather have almost anyone else instead of them.

[quitted;]

Uh-huh.

Admit it, once in your life you've nearly had heart attack when someone told you your work (for me, writing and acting) was fantastic.

[BlueAlchemist]

Still have something from 2013... I'll give it back....

Admit it, When you were a kid, watching Phineas and Ferb, you have sung the "doofenshmisrts evil incorporated!" tune.