Bumble bees are not agressive like honey bees can be and if they are left alone they leave you alone, wasps are totally different they will sting at any given oppertunity. The African honey bees are the most aggressive and now there is a mojor problem in south and north america with them, A brazillian bee keeper imported them to brazil and created a hibrid which is now known as the Africanized honey bee because of the high levels of honey production, this has caused the bees to spread right into the united states and they have been known to kill people. The guy who imported them was almost in tears because what has happend, and says he wishes he had never imported them to the Americas.