Do you think my stepdad is hiding something?

My stepdad (48m) and my halfbrother (10m) have been leaving the door open on several occasions. One of our house cats (1m) has been crying for help for two days. This happened especially when I (21m) woke up; the door was open, the dad and brother were standing outside (I thought the FBI was going to come after us), and right after when they walked back inside, my stepdad walked to the trash can and was feeling a little pissed off, and he said some two-word sentence starting with the vulgar F-word, ending with "-ing."

My mom came downstairs and I asked what's wrong to them, and (at first) I said that he was mad; my stepdad suggested, "Mad about what?" I quoted that he was saying "f-ing something" (the whole phrase, not just edited), and luckily I wasn't called out for quoting a cuss word. My mom said something about finding our cat.

I heard my cat making some noises, as I pointed out to my stepdad. He asked me, "What does that mean to you?" I said "I don't know." He said, "OK?" I referenced him to being "sad." He went on and told me, "Oh, well... I don't know what to say to you." I went upstairs afterwards as I was making a peanut butter and jelly sandwich.
Select gender and age to cast your vote:
1 y
I meant to say he said the F-word that ends with "-ing," not that the whole sentence ended with "-ing."
Do you think my stepdad is hiding something?
2 Opinion