I think you've answered your own question, just the same as so many others.

eg, when we've discussed on eBay whether sellers should leave feedback first, after payment, after a buyer seems happy but hasn't left feedback, after the buyer leaves it.

The thing is  you cannot go back and try again.

Certainly as Lynda has pointed out, some industries have suffered such as fishing which was quite disgraceful in how we just rolled over and gave more rights to other countries to over fish in the seas around the UK.

Another one which cropped up on R4 some weeks back over a power station that was forced to close early (and I do apologise for not remembering all the details) but the essence was that jobs were lost overnight when they did not have to be.

It's also worth remembering that the UK is one of the few 'countries' that are compliant with the EU regulations whereas so many other countries regularly flout them - employment law being one huge area.

But all the rows about the Leave campaign giving no facts and figures are just deliberately diverting from the issue that very few facts or figures can be given other than those we know for sure about immigration rights , increased contributions.........

We have no idea where the EU will end up going because so much is being forced through on an ad hoc basis.

Take the issue with Turkey - was there a debate in the EU parliament to agree to that dictator's bullying and demands for automatic entry?  No - yet here we are with a fait acomplis which we have no control over.

Look back just 3 or 4 years even - could anyone predict we'd be facing this unprecedended level of migration, both war-driven and economic opportunists?

If we leave, there will need to be some serious changes but that doesn't mean that it will be bad or even have to be that difficult.  The difficulties will come from how those in Goverment choose to behave and conduct themselves in taking the UK forward and who they will choose to make pay for their loss of face.

I wonder why dave isn't going on a tour of the US to lecture the yanks on how they should be voting and threaten them with the dire consequences of voting for that idiot with the dead rodent on his head.