My idea is:
To adquire more stamina, we need to enter in the night life use our TICKTS. But, in determinate time of the game, for example on the final, is don´t possible to frequentate this place.
Its better, if possible for us, to use our credits to adquire some tickts to enter in the night life.
For example:
10 CREDITS = 500 TICKTS
Thank you.