Paris - Day 2 ... the whines of a Grumpy Cat

Might it be that being tired makes me whiny like a baby who needs to sleep - and I confess that, maybe age is beginning to overwhelm me, but after exploring a large slice of Paris relying solely on the energy of my feet, I  DO feel very tired ...
In any case, I decided to spend the day today to talk a bit about some negative sides this time.
Yeah, I know that I had made ​​a boy (girl? cat?) scout promise to to force myself to focus always primarily on the positive ones, and actually to always go pick them, to look proactively for them. I think I almost always succeed doing it, and believe me, it was not easy to discipline and self-form me in this, since I am not born nor I have been educated to do so.
Well, but now my digression sounds a bit too much mélo: after all the negative sides of a vacation in Paris cannot be so dark and hard to bear!
Anyway I think that a little bit of healthy criticism every now and then can be just as useful as enumerating what is beautiful and pleasant.