The “bee” drawn by Watterson is a yellow jacket, which is a type of wasp. A lot of people erroneously call them bees. Yellow jackets can and do sting multiple times as well as bite.
While I still read B.C., since Johnny Hart passed away, the strip, as written by his surviving family, frankly sucks. It is not their fault as they can’t possibly have the same thought process as Johnny had.
Because it was no longer needed, as the fact that clumsy is going out of business had been established in the first panel. Or maybe Hart forgot,