When I did my first AG batch I used the bucket from my homebrew kit for the primary. My wife called me into the pantry where it was stored the next afternoon and asked
'Is this normal?'. The airlock had overflowed until it clogged and lid on the bucket was bulged 3-4" vertically. I was pie faced. I didn't expect such a violent fermentation at any point. I really didn't even expect to see the first bubbles in the airlock until that evening. Im pretty sure my brewing career would have ended the moment the bucket exploded in the pantry