['My fiance found a snake in our yard the other day! It was terrifying!', 'Wow, that is scary. Did you guys do anything or just stay away from it?', 'No he killed it. Somehow, I totally went inside and did not watch. We had to because we have two dogs that play in the yard.']
Yes, I'd be very concerned about pets, too.  I'm glad your fiance got it before it caused anyone anymore trouble.
My fiance found a snake in our yard the other day! It was terrifying!