A Happy Herbie belongs to the group of the happy vegetables and is the most ticklish vegetable in the universe. The slightest touch is sufficient cause to the grass for a euphoria and hysterical laughter. Like most grass sorts it spends its day sitting on a meadow and waiting for something to happen. If nothing occurs, as it usually doesn't, the grass begins to tickle each other. Since it is absolutely to tickle oneself, laughing grass can only be found in packs. The packs come in different sizes, starting at a few blades of grass growing as large as a whole meadow. To improve ones mood there is nothing better than running through a meadow of laughing grass in order to leave with a really good attitude and a smile lasting several hours. The healthy effect of laughter has long been known on planet Gnum and is considered the best medicine.