Pros:

You can retire early from work
You can get a disabled sticker and park near the store entrance. avoiding get too wet
You get to sit and watch your favourite TV Programs
You get to sit in the coolest place around when the weather is too hot.
Cons:

No work no money
The only disabled park is the one furthest away, you try to rush in the rain and your legs want to slow down.
Your eyes decide they don't want to focus or show you 2 of everything.
You miss out in joining the children/granchildren enjoying life
Anyone want to add to the list?