On the other hand, even if the donut is there uncut, how does one know that someone's mitts haven't been on it? I guess it is a risk you take. Personally, I won't leave a cup of tea or water unattended, because someone could spit in it and I wouldn't know. Do I think someone I work with might do that? I don't really think so. But, then again, when they find the latest serial killer, his neighbors always tell the news what a nice guy he appeared to be.But in an office setting unless I witnessed the cutting even if urs with a knife I think it's a safe bet that hands were used. I doubt an office move included a surgical strike. I could see maybe cutting it in half but in a public office setting its unacceptable. I notice people who don't wash their hands after using a public restroom. Living with a person with a lowered immune system has made me sensitive to these issues.