I accidentally took a free tram ride from Belem to...

I accidentally took a free tram ride from Belem to this market hall. I m really sorry for not paying for the ticket, I thought the card I had at the time was valid. No one caught me, but still, I am guilt ridden over the 1.50 euro I didn t pay the public transportation of Lisbon. Market is overpriced compared to other quality local establishments.