I had no idea about this and felt like sharing

Evidently red kidney beans improperly cooked can give you food poisoning.

Red Kidney Bean Poisoning

A not so pleasant aspect of the kidney bean is an illness caused by a toxic agent that is common to many species of beans; however, its highest concentration is most often found in red kidney beans. It is possible for just a few raw beans to trigger adverse symptoms.

As with the preparation of many foods, proper handling and cooking temperatures are of the utmost importance. The toxic syndrome has been found to be commonly caused by the ingestion of raw, soaked kidney beans, but several outbreaks have been linked to "slow cookers" or crock-pots, which had not reached a high enough internal temperature to destroy the glycoprotein lectin. There is some evidence that heating the beans to 80 degrees C. may increase the level of toxicity by five, which makes the beans even more toxic than if eaten raw.

Symptoms of toxic reaction usually appear between one and three hours after consumption and are marked by the onset of extreme nausea, severe vomiting, and diarrhea. Some persons have even been hospitalized, but recovery is usually rapid and spontaneous. There have been no major outbreaks in the United States.

NOTE: The following procedure has been recommended by the Public Health Laboratory Services to render kidney, and other, beans safe for consumption:

* Soak in water for at least 5 hours.
* Pour away the water.
* Boil briskly in fresh water for at least 10 minutes.
* Undercooked beans may be more toxic than raw beans.

From this link.

Good to know. I love red beans and rice. From now on I will make sure to cook them on the stove until really well done.