By strapping urinals on a bunch of trees, a Dutch designer has solved one of the most serious problems men face, finding a toilet when you need one。

　　Sam Van Veluw came up with this interesting concept, one night, at a music concert, while he was desperately looking for a public toilet. As soon as his eyes met a tree, the idea of strapping a waterless urinal onto a tree, simply popped into his head。

　　Named the P-Tree, this outdoor urinal can be hooked up to a central sewer system, or an onsite infiltration system that would dispose of the fluids and nourish the tree with nitrogen, at the same time。

　　However, who would be comfortable with public urination?

　　近日，荷兰一位设计师将男用小便池绑在树干上，“树干公厕”应运而生，男士们在需要的时候随时都可以方便，而他们面临的最严峻的问题之一——“内急”——也因此得以解决。

　　据称，某晚，设计师山姆在荷兰某音乐厅近乎“绝望”地搜寻厕所，当视线停留在一棵树上时，一个将无水小便池绑在树干上以解决“内急”的有趣创意便从他脑海里“蹦”了出来。

　　这种“树干公厕”被命名为“小便树”，可以与下水道系统相连，也可以装置过滤系统，既可以排水也可以利用尿液中的氮元素给树木“施肥”。

　　不过该设计遭到质疑。毕竟，谁愿意在众目睽睽之下宽衣解带、解决内急呢？