Can we make a thread detailing any and all small bugs we see in MS?

Another little glitch I became aware of last night.... I tried logging into my main account on my other computer whilst it was still logged in (Sometimes I do it out of pure instinct.) and it said the ID was already logged in, naturally. After that, any other account I tried to log into, even if there indeed wasn't anyone logged into it, it would tell me it was already logged into. Interesting glitch I must say...pretty sure it's a fault of the client...as usual...