I thought I read somewhere that bumble bees cannot fly. Can you therefore tell me how I this explain to a bumble bee. He/she has just flown into my kitchen, and it is ginormous. Must be at least one inch in diameter, very dark in colour, and makes a noise like a grass strimmer, only possibly louder. He has now gone into the dining room, and I have shut the door on him. What do I do now? Can I have a volunteer please to let him out, by opening the patio doors?