Earlier this week our nanny let DS go on a pre-arranged playdate even though the other kid had spots which his nanny thought might be chickenpox. DS is under 2 and am pregnant. Nanny knew all of the above but was not sure what chickenpox was (not a native speaker). She texted me (knowing I was at a work event where I'd have my mobile off) and when there was no answer she just went ahead.
Now we are worried about DS, may have to cancel an overseas trip for an important family birthday and have had to cancel 3 out of 4 planned social engagements as the other parties were not immune. AIBU?