A chair that suddenly collapses under one of your guest is no laughing matter (unless, of course, no one gets hurt). To prevent mishaps, This Old House
master carpenter Norm Abram recommends that you take out any loose stretchers (the horizontal pieces that run between the legs) and scrape off the old glue with a knife. Apply a slow-setting epoxy, and lash everything together with a band clamp
around the legs. Wipe up drips with vinegar. Take the clamps off the next day when the epoxy has cured.