Some of us here at Artviva take the commuter train daily from Livorno Centrale to Firenze Santa Maria Novella -- as many of you will, too.
Do, please, remember to validate/punch your ticket in those little bullet-shaped machines either on the track or in the hallway between when you enter the station and take the stairs to your track (which is almost always 6 or 7). The conductors have come out of hibernation, and now ply their trade almost every time we're on the train. Today we saw some hapless, non-informed Anglophones doing polite battle with a conductor. If said is not feeling benevolent, you'll have to pay the fine on the spot.
Please also tell your concierge on any ship you're on to REMIND folk that this is the policy in Italy -- i.e., punching your ticket. It's an easy way for trenitalia to amass some even easier $ ... less paper work than arresting all the Roma who ride the trains daily without tickets.