. >> we've got another video, posted by matthew alexander to our facebook page. 2-year-old nephew helpingwout the candles on this birthday cake. >> not quite. go ahead. >> blowing it out of his nose. >> he would blow it up his nose. he hasn't figured out to make his lips do the whistle shape. >> harder. >> yeah! >> yeah! >> he has a really good giggle. so cute. >>> public rest rooms reviled across the world. everybody feels icky when you have to go in there. >> ahhh! >> this guy, fascinated by german engineering in berlin pushes the flush button. watch. a device comes out, starts to run water and the toilet seat. >> this is awesome. >> automatically spinning around squeezying itself only to return to the starting position and presenting the next pooper with a perfectly clean toilet seat. >> like antibacterial solution they're rubbing on the toilet? >> still not clean enough for me. >> germans are known for inagain flewty and engineering. to me it does not look like the seat is wet as it comes around. looks like it's doing a complete clean job. why build something like this if you're not g