Ho chi minh TSA

before coming here i was unaware that e cigarettes are banned here now, as i came a few years ago and faced no issues.

i know the possibility of being fined but mainly what i don’t want is to miss my flight because of it, would i realistically have an issue bringing one personal e cigarette back in my carry on? it’s legal in my layover country and home country.

realistically i don’t really want to hear if this question is stupid, so please only comment if you have a direct answer for me please!