I sell my eggs to co-workers and would hate to give them an egg they wished they hadn't cracked!
There is always an off chance that there will be something distasteful in any egg. Blood spots and meat spots are not terribly rare, and even if you candle each and every egg you'll miss them. The best thing I've found is education--since these are people at work, hopefully they'll tell you if they get something distasteful, and you can let them know why it happens and that it's not harmful. I often give people this link, which explains lots of things about backyard eggs: http://www.redwicket.com/2013/01/egg-myths.html
