I work in an open plan office with 10 other people. One of my colleagues had been off yesterday and then came in today. They said they had been really unwell over the weekend, temperature chills etc and had tonsillitis they day before and started antibiotics yesterday, they look quite sick and have been coughing and sniffing all morning, just feel they shouldn't be in the office, im worried ill get sick too and I have little kids. AIBU to think they should have stayed home another day or two while they are on antibiotics?