E.g., if you wave in first, read that your balance is low, and then go to a ticket machine to top up, it will be counted as a maximum fare travel. Still the case, after so many years.<p>Those retards did not even think that ticket machines may be available beyond the oyster barriers, but this is very common on many suburban rail stations.<p>And if they were not such scumbags, they did not even have to <i>think</i> about all that at all. There are trivial formal methods to analyse <i>all</i> possible workflows. The fact they were oblivious of such methods is unforgivable. The incompetent uneducated retards should never be allower anywhere near any technology.