[Tagging] How to tag cricket nets?

[Warin]

These are used to warm up and practice Bowelling and batting for cricket.

Previously they were tagged leisure=pitch and sport=cricket_net ...

But someone has pointed out that this in not a sport...

http://wiki.openstreetmap.org/wiki/Tag:sport%3Dcricket_nets

  so

sport_practice=cricket_net

A documented suggestion is to use sport=cricket, barrier=fence .. but 
the argument is it is NOT A SPORT so you cannot use sport= anything! :-P
The suggestion is on
http://wiki.openstreetmap.org/wiki/Key:sport

I'd think similar 'restrictions' will be imposed by the pedantic on 
other pitches that are only used for practice ..for example - half sized 
basketball courts - only used for practice .. not full sized due to 
space restrictions. So not a sport.. just practice.

There are similar concerns for sport=exercise, sport=fitness .. these 
too are not sports..

So .. what tag to use? leisure=pitch still suits.

nonsport= ? :-)