Amusing, but no (at least I sincerely hope). Food and wet samples are never in the same vicinity as a matter of OSHA (plus just a general desire not to get yourself or others killed). Violating that would typically be a great way to speedrun getting fired.

Radioactive substances go beyond that, generally being handled in their own dedicated area that no one else is permitted to enter for any reason. The level of paranoia is actually fairly impressive (but obviously necessary).