This might sound like a command in English, but its more of joke used normally with children. The full expression is "Tough Titty said the kitten when the milk went dry". Tough luck basically. Kids don't want to do something, they have to do it anyway. So Tough Titty. I've never actually heard anyone say this so their child in real life, somehow it seems a bit inappropriate.

In Japan, something like "Be there or be square," would be more along of the lines of be there, or we decapitate you. Actually, that may be slightly overkill (that's funny cause I said decapitate before and I just used the word kill in overkill). I really crack myself up sometimes.
In Japan making your presence is an obligation. It doesn't matter if you have nothing to do as long as you are there. You can stand around, pretend like you are doing something, or not pretend and just sleep. Even snoring sounds are acceptable based on my observations.
It reminds me of those Simpson's episodes where Homer is supposed to be watching the security camera, and he's in deep sleep. You thought people slept already on the train on the way in, but you still find people sleeping all the time, in meetings, talking to people etc.
Its probably cause they were obligated to stay at work late, then go to after parties, then get home super late, shower (hopefully), then start that cycle again.

This guy mean business.

And just to add to the confusion, cause I like mind games with words.
I don't want you to confuse your (personal) presence with (gift) presents, but both are equally important. As I alluded to in a previous blogpost I gave a wrotten melon to my hostfamily. It was beyond nasty, my fingers melted into it like it was better. For me, it was the thought that counts.
Normally if I had given a nice $100 melon they would have recorded it in some hidden journal and wrote "Demon boy gave us a nice melon today, owe him something back for $100 ish". Instead they probably wrote "that mofo demon foreigner gave us a nasty melon, what a fuc$ker. I can't believe him. Let's get revenge on him in the future by slipping him some poison fugu fish on his next meal with us". That seemed fair, afterall revenge is sweet when served cold (or is that ice cream? Possibly both).

I never recorded anything when I was in Japan and I never remembered who gave me what. I'm sure I owe a lot of people things that I was given. I think I mentioned I once mentioned I wanted to buy a sword and all the sudden my host family bought me one. I felt a bit guilty now, but at the time I was like, can I rack it up even more? Some gold bars? Pixie dust? (the real magic dust one not some sort of code for drugs).

I want this one. Real pixie dust and I can fly like Tinkerbell.

The saying be careful what you wish for also comes into effect here.
Sometimes you have a balance owing for whatever was given to, if you like it or not.
This could result in a sliced off finger in certain circles, or broken bones in others.
I recall a story from my old Japanese teacher (a large white guy) who told me about a friend he had that kept going to this fancy steakhouse. The owner, a yakuza guy, said you can come here and eat anytime you want for free. His friend thought that was great, so he went everyday. He told his friend you should be careful or they might ask you to smuggle drugs, or do something illegal in return. Nothing is free in life.
He didn't hear from that friend again.
Though I'm a bit concerned his "friend" was imaginary and he's trying to give me a life lesson without telling me I'm an idiot.

If that's true, he's the opposite of my wife.

That's not my wife, but it looks like her gun. Be careful.