Just because someone is depressed doesn’t necessarily mean that they’re down and sad 24/7 (this isn’t applicable to everyone with depression). They can still have good days, and if something good happens to them, they can still be happy about it. Also, this doesn’t mean that when they’re happy, they’ve gotten over their depression. <----YES
"Don't worry we'll ease into it and start small. Onto Japanese tentacle porn! And then cat videos, and then a combination of the two!" <Are we sure the tenticle porn should fit in before the cat videos? Also, there are tenticle porn cat videos?