@sashagabadon
To be fair he might not have known immediately.
This.
Chances are it was an LFT and he went home to isolate once told. Child may not have woken up til after he'd left and only then been tested. Possibly a quick lft in meantime whilst sorting a pcr, if he had symptoms.
I tested positive without the normal symptoms. I actually was in hospital a where my test was done. I didn't know it was going to be positive as I didn't have a cough, high temperature it lost my sense of taste/smell. Infact the day before I was teaching all morning but left to go to the doctors - where I was rushed to hospital for non Covid reasons. Turned out those non Covid reasons were actually Covid complications!
I was on a full mixed ward all day and night before we knew. Never been moved out of a ward to an isolation room, so fast as that morning!
Dh was at work when I phoned him to tell him I'd tested positive at hospital. He'd been in meetings during the morning and came home as soon as he heard.
Dd has seen a friend outside and had to come home to isolate.
Likewise my friend was also at work when I let him know. He told his line manager, brought his lesson to a close and came home but he'd been teaching all morning. The friend's children were at school all morning and came home once told.