Monkeyrobot

I bring 12 months worth of blood pressure tablets every year, there are 30 to a box so there’s 12 boxes, however there is room in the box to put another 60 tablets so each box now has 90 tablets so 3 boxes is 270 it’s looks like 3 months worth and each box says 30 tablets even though it has 90. The remainder I put in my carry on.