Thanks to my having booked a stay for my mom a month or so ago, I actually have
an odd number of stays with Marriott during the current MegaBonus promotion, which means this paid stay will trigger the payout of another free night certificate.
This can lead to an
odd situation in which increasing the total
number of seats available reduces the representation
of an individual constituency, even if its population
stays the same (see «Proportional paradox»).