Dads on Grade Level

Today, sitting at middle school reception. A random dad walks in.

"Hi! I need to drop these shoes off for my daughter."
"Sure! What grade is she in?"
"Uhhh...I don't know. Seventh?"
"Seventh grade is at lunch right now, but we can get them to her after. Her name, sir?"
(Name.)
(Computer check.)
"So she's at lunch now, but she'll get them after?"
"Actually, sir, your daughter is in 8th grade, so I'll have someone take them to her now."

My kid's Dad last fall at elementary school pick-up:

"Hi, I can't find my daughter."
"What grade is she in?"
"Uhh...first? Second? Not Kindergarten."
"Do you know who her teacher is?"
"Uhh...no..."
"Do you know where she usually gets picked up?"
"In the pick-up line."
"We have two pick-up lines."
?!
"What's your daughter's name?"
"Olive."
"Oh, Olive! She's in my class! Hi, I'm Mrs. (Your Kid's Second Grade Teacher)!"
Mortified.
"Oh, don't feel bad! My husband wouldn't have known either! He's an engineer."
"I'm an engineer! I'm an engineer!"