['I had a bit of a situation with my cat lately, he went missing for 2 days!', 'Oh my.  I bet you were a nervous wreck.  How did you find your cat?', 'We ended up finding him in a nearby shed. He walked in and got locked in. We heard him crying! Luckily we managed to bring him and feed him quickly']
I am glad he is back home and safe again.  You must be relieved.
Recently my cat went missing and we were unable to find him for a couple days. Eventually we found him locked in somebody elses shed and hadn't eaten or had a drink in 2 days. I took him inside and made sure he was okay and gave him plenty of food and water to help make sure he got what he needed.