Concertina Door

We met with a metal worker today. He came out to the house to look at a big hole in the wall and see if he can put in a concertina door for us. Of course the conversation went like this:
Can't be done.
Why not?
I've never done it before.
But can you do it?
Well......Yeah.

That's the chap on the left. The fella on the right is the builder. He also likes to have conversations like the one above.

鐵工師傅來看我們摺疊門的位置，他看了我印給他的摺疊門圖例後說......
這哇摸跨貴捏(台語)
要研究一下
再報價給你們...
hmmmmm...