I must reiterate the comments from other forumites.
When I was a 14 YO lad I had dreams about participating in greyhound racing until an industry person pointed out some of the cruel/inhumane practices employed by some "grubs" to make their dog keen to chase.
I was shocked and abhorred and decided that I didn't want to be a part of any industry that "condones/tolerates" such practices .I see nothing has changed and the authorities should embark on a total clean-out of those who condoned or participated in such nefarious practices.....sheesh!
Time of shame for the whole industry which I am sure can recover somewhat.

Cheers.