Finding a snake in my coop is my biggest fear. I am deathly afraid of them. I almost stepped on a rattle snake a few years back. I was carrying a basket of clothes to hang up and didn't see him start to slither across my side walk. When I did look down to see the step, he was just inches from my foot. Needless to say the basket and the clothes went flying in the air, I ran at a speed I hadn't run at since I was about 12, went in my house and leaped onto the kitchen counter in one jump. My mom was visiting and her and my daughters were out of the deck and had no idea what was wrong with me. So I tried to call them all inside and I finally caught my breath enough to tell them there was a rattle snake right under the deck.
If a snake ever touches me, venomous or not, I will die on the spot of a heart attack from fright. If there is one in my coop, I will either call my husband or one of the guys from my work or my neighbor or all of them! Of course my screaming would probably have people running down the street to see what my problem is. This is my biggest fear as a chicken owner. So far in 10 years I have not lost a chicken to one nor have I seen one in the coop and I hope I never do If they go in there, they leave before I see them. I am always very careful to look in nest boxes before sticking my hand in them.
I hope you are ok. Just the thought of a snake touching my foot gives me the heebie jeebies! You are braver than I am.