Ok I’ve got this idea for an invention I thought up, let me know what you think.

It would be an expandable/collapsible bathtub! You know how you’re in the bath, if you take baths (I’m usually a shower guy myself but sometimes the girl likes baths, anyway) and you want to lie down? Just expand it out, kinda like a recliner, and you can lay fully down in it. Or if it’s taking too long to fill up with water, or uses too much water for the environmentally conscious? Just collapse it together into more like a tube so that it can fill up to your shoulders with less water. I’ve heard Japanese bathtubs are like this tube concept; you could get the Jacuzzi jets goin and all that in your little bathtub tube.

I think it would be cool anyway.

I’m not sure what kind of material it would be made out of, maybe that liquid metal stuff from terminator 2 when it’s invented. I’m not sure if it would accidentally crush you or not if someone pushed the collapse bottom while you were laying out in it. And fat people probably couldn’t use one since they might get stuck, but, you know it’s just an idea.