On Tue, Nov 21, 2006 at 06:20:22PM +0000, Paul Corfield wrote:

For bus and tram travel the fare is deducted on entry to the
vehicle / system. Therefore there is no penalty associated with not
validating on exit. (There are some special issues at Wimbledon for
Tramlink but let's not dwell on those here).

No, let's dwell on it for a moment. It is precisely these special cases
and other edge conditions which confuse the hell out of users and make
them distrust the system, simply because it is *very* hard to know
exactly how one should use the card.

--
David Cantrell | Reality Engineer, Ministry of Information

"Every normal man must be tempted at times to spit on his hands,
hoist the black flag, and begin slitting throats." -- H. L. Mencken