I'm in the Uk and bought Annie Sloan paints a couple of year ago to paint some pieces of furniture. I attended a course run by the stockist and made a good job of a small tilt top table and a poor job of a mahogany coffee table (it was quite hot weather and I think that was the problem. However now I have a new one. All of my Annie Sloan paints were purchased about 4 years ago. There are 8 cans of which 2 have been opened and part used. They are all stored in my 2nd bedroom, my craft room, which is warm and dry. I keep them in the plastic tubs that come with Ikea trofast units and saw that one had gone rogue and was sitting on another shelf in the room. When I picked it up & could see that the back of the can was full of holes along the seam and paint was leaking out. A can of Emilie, Chateau Grey and one of Olive were similarly affected (Chateau Grey had about 30% used and resealed. The other 2 cans hadn't even been opened. I contacted AS UK and was told that they had changed their can supplier in 2016 (I wonder why!) and that the paint only had a shelf life of 12 months so, as a goodwill gesture, they would send me one can out. I've since checked the other 5 cans and even the previously unopened ones are rotting from the inside. The ones that are intact have what appears to be perfect paint in them. I want my 3 cans replacing and 5 empty new cans sent out to decant the rest into. I've rung around several stockists and they all say things like the cans last for ever, no shelf life. oh they found a can that was 15 (or 25 according to who was telling the tails!) years, opened it and it was fine to use. AS won't budge on only replacing one can so thats £160 pounds worth of paint wasted. My own stockist is horrified at what I've told her and has said that she has had some of the cans for longer than a year and that no-one has ever said there's a shelf life of 12 month. They say they've now put info on their cans stating it should be used within 12 month of purchase but your can might have been sitting on the shelf for some time. A bunch of liars and cheaters who wont admit to a problem. Buy something else.

I experimented with chalk paint on an interior wood door and much to my regret, I do not like it! Can I stain over the chalk paint?

I would caulk it - I didn't do mine at first and it's a crumb and spill extravaganza.

That doesn't sound normal. The texture should have been stripped completely away, down to the sheetrock layer, and the refinishing and skimming should have been done with joint compound which would have dried hard. What did they use to smooth over the walls? Also, matte paint was the right choice; something shiny would show imperfections even worse.