the chairs looked fine when they arrived and put them together.  then we noticed that one of them was leaning slightly.  we even had our handyman try to correct it to no avail.  still, even though it was annoying, the chair was functional and we decided to live with it.  then one night i was sitting in the chair when it slowly sank into the lowest position (i weigh 120lbs).  now, whenever anyone heavier than a child sits in the chairs they both sink down. [...]