If you air-drum while waiting for the microwave even if don't have any music playing, then you might be a drummer.
If you purposely use a much lower microwave "power" setting just so you have more time to air-drum, then you might be a drummer.
If you air-drum while sitting on the toilet - even long after you're finished, then you might be a drummer.
If you air-drum to the rhythm of a washer or dryer, then you might be a drummer.
If you drum on nearby surfaces to the rhythm of the washer or dryer, then you might be a drummer.
If you drum on the washer or dryer itself to its rhythm, then you might be a drummer.
If you feel rudely interrupted when the washer or dryer stops, then you might be a drummer.
And of course, if you air-drum to the rhythm of a dishwasher, then you might be a drummer.
If you always drum on the sink with your hands while waiting for the water to get hot, then you might be a drummer.
If you are in the middle of doing the dishes and you stop and drum on the sink (and counter tops) with your hands for 10 minutes, then you might be a drummer.
If, while waiting for your computer to do something, you start drumming on the desk or your keyboard tray (or both), then you might be a drummer.
If you're standing in front of your collection of DVD movies trying to decide which movie you want to watch only to end up air-drumming for 20 minutes instead of choosing a movie, then you might be a drummer.
If you air-drum with eating utensils, then you might be a drummer.
If you always try to walk in specific rhythms, then you might be a drummer.
If you air-drum on top of walking in a specific rhythm, then you might be a drummer.
If you drum on your desk or keyboard tray while you're just sitting there thinking, then you might be a drummer.
If you walk up or down a flight of steps in a specific rhythm, then you might be a drummer.
If you accompany that rhythm with patterns on the railings, then you might be a drummer.
If you intentionally take the stairway instead of the elevator just so you can drum on the railings and listen to the awesome reverb and low-end, then you might be a drummer.
If you drum on your steering wheel at every single red light, then you might be a drummer.
If, while you're on the phone, you always have a drumstick in your hand playing on various quiet surfaces, then you might be a drummer.
If you can't listen to classical music without air-drumming to it, then you might be a drummer.
If you can't focus on a conference call at work because you're too busy quietly playing to the rhythms of their speech, then you might be a drummer.