Duncan and Abby do not like cold rain

We're having a cold front move through and it is raining, not hard, mostly drizzle.  Jock asked to go out, so of course Duncan and Abby want to go.  Jock darts out the door.  Abby goes to the porch and stops.  Duncan looks out the door and won't go any further.  I toss Duncan and Abby out in the grass.  Abby does her business and races back to the shelter of the porch.  Duncan races with her.  I put him back in the grass and he races back to the porch.  So I take him a little farther out in the yard.  He looks at me, looks at the porch, then takes a quick pee and races back to the porch.  Jock, in the meantime, is happy as can be and not feeling the cold rain and is running everywhere.  Did not know that Bichons had such thick coats.