Bull rush question

[doc the grey]

If I throw someone with a bullrush into a wall do they take damage and if they do does the wall as well? And can that break the wall altogether and send people through it and continue the bullrush?

Like if I bulrush someone into a rotting wall can it break the wall and have him continue on?

[Durngrun Stonebreaker]

PRD wrote:

You cannot bull rush a creature into a square that is occupied by a solid object or obstacle.

Found here. (Third paragraph)