Brycie, other children do not have to wait.
In a well-managed classroom, I will be maybe talking to the whole room '...so what effect does the h-alliteration give? - John, first warning, OK, don't prod him - yes James?'
...then 5 minutes later, as students are working in books, I see John knocking someone else's pencil case on the floor '...pick that up, second warning, OK? See me at the end'.
It seldom goes beyond that - if it does, he's timed out. Any argument about that, I send someone to the office to let them know he needs removing.
It's no more disturbing the studies of the other students than my moving around desks when they're working, chatting about how I'll be seeing Jake in the school play that night or telling Amy her homework was particularly impressive.
Yes, you get the odd total meltdown, but the more usual scenario is '...Sarah, can you nip down to the office with this Red Card? Thanks' whilst the student to be Red Carded sulks at his/her desk.
I haven't needed to have a student removed in 18 months. It's not a daily occurrence!