How can I stop my older brothers from peeing on the toilet seat?

I'm just so sick of it. I have 3 brothers and it seems like every time one of them goes to the bathroom they piss on the seat. Their older then me and i just think it's crazy that they still do this crap. I told my daddy and he got on them once about it but nothing changed. I guess it doesn't matter because he doesn't have to share a bathroom with them Grgr..

I tell them about it but they just laugh or tell me "it's not that serious just wipe it dam" they get on my nerves I feel like going into their room and stealing that PlayStation 4 and Xbox 1 and hiding it intell shit starts changing. The way I'm feeling I might break them.. they don't care about how I feel so I guess I won't care about how they feel about those game systems.
How can I stop my older brothers from peeing on the toilet seat?
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