I am not feeling at ease in places crowded with people... sort of a a light phobic disorder I guess.
Or, it might simply be that I dislike the total disorder of people moving around seemingly without knowing what they are in search of or looking for.
Lisbon is a place with thousands of tourists roaming around in the old town district, on streets and alleys filled with tramways and all types of transport vehicles trying to keep up with their schedules. In my opinion a more often than not ; a virtual daytime nightmare.
o