mrslaughan - I'm not surprised your handyman thinks that about the SNP: like the EU, Scotland/the Scots has been the subject of decades of jibes of being "scroungers" - partly because of the Barnett Formula.
I could post up links to the McCrone report (which points out the oil would cause all sorts of problems in making Scotland too rich
) and other civil service reports that demonstrate that for the last 100 years (ie not just since the oil
), Scotland's overall economic contribution has been positive, but they won't counter the feelz
- just like the population was manipulated by the MSM over decades about the EU 

And the fact that the last few years GERS has shown a negative is a) arguably because not all of Scotland's GDP is allocated to Scotland (for example, there is an awful lot of oil that is allocated to an undetermined geographic location and not Scotland , because although it comes from Scottish waters, it doesn't make first landfall in Scotland), b) because it is based on WM's spending and macro-economic plans, including paying for Trident and other major infrastructure that we might not choose to be involved in, and c) the "negative" has been mostly comparable with the deficit that WM had been running
so is something that could've been managed (and in any case, we should have had a Sovereign Wealth Fund like Norway to be able to smooth over ups and downs in the economy but let's not cry over spilt milk
).
Scotland (until recent events in Venezuela
) was the only country to discover oil and end up poorer 


I'd also turn it around and say (ignoring the oil) that the fact that a country with the resources and industries that Scotland has - food, farming, forestry, fishing, tourism, whisky, gin, call centres, bio technology, gaming & software, water, renewables - is supposedly a "scrounging nation", is an indictment of 400 years of WM "rule" 
The MSM has also been very good at making the SNP the bogeyman and perpetuating the trope that they would be the only party in an independent Scotland
. If people don't want the SNP in an independent Scotland, then they can vote for who the fuck they like : we already have a Scottish Green Party, a new Labour Party (not led by Corbyn
) would need to be set up, a "One Nation" (as in "belief in society") Conservative Party, and you never know, the LibDems might become more relevant (but there again, under Willie Rennie maybe not 
And breeeaaathe
you'd never believe that in 1979 I'd have voted against "home rule" but couldn't as I was a few weeks too young 