Senior, shall we go to the toilet to do it?

What you are talking about should be some plots in some novels. Many times, we don't really care about us. People older than us are called seniors. Generally speaking, we will call them Brother Xue or something, and there will be more. If they are seniors, they may all be. What will these areas in the south call them? At the same time, such a sentence may be more intimate, but what you said is actually a few stories, which will happen in real life. In this case, it may not be allowed, because it may involve some issues that touch the bottom line, so it is better to pay attention.