With apologies to whales everywhere

I was at the bar the other night and overheard three hefty women talking. Their accent appeared to be Scottish so I approached and asked, "are you three lassies from Scotland?"

One of them turned angrily towards me and screeched, "It's Wales, Wales you bloody idiot."

I was mortified, apologised and said, "I'm so sorry, are you three whales from Scotland?"

I don't remember much after that.