Ah well, you can't blame yourself. When in doubt and feeling down, blame the co-worker. No offense to the men of this board and around the world, but I have found that sometimes men that have raised chickens "for years" seem to view women as perpetual newbies who will never understand the ins and outs of chickens. I usually just smile and nod and wait for my moment to show them up, knowledge-wise. The opportunity will arise eventually and I relish the look of surprise when I get one over on them. LOL
The last time I got such a chance, a man had come to buy something (not a bird) from me and had "raised chickens for years" and I could tell he was arrogant in his opinions. He was very smart and I just bided my time while he looked in my coops. Finally, he said, "That there is a nice Brahma hen there," (this after he had politely out-talked me about my own birds for about 5 minutes) and I proudly said, "She is nice. But she is a Delaware hen. Light Brahma's have feathered legs." He quickly changed the subject after giving me a surprised look, and left shortly after.
Muahahahahahaaha....