There's nothing wrong with expressing your opinion, when necessary, it's all in how you do it.

I was at the pet shop a couple of days ago. I could get two fish for $8 or four fish for $10. I don't really need four fish, but it is a good opportunity to 'rescue' them and take them away to a better life than they would know, there.

You're right, I am a big old softie. I bought four.