I'm with Anne on this one.
There is no way I'm going to try to squeeze anal sacs on my bitch. I'm not even entirely sure where their openings are. And I'm not putting a finger up Frosty's bum either - for which I'm sure she is grateful. I'm more than happy to pay someone else to do it at our local vet's if it ever needs doing, and if it gets so it needs doing every month, I'll pay to have them removed. This happened with one of our previous dogs, and she only lived a year or so after that. Another one of our dogs - I don't remember her ever needing assistance with her glands.