When you eat Jolly Ranchers and say, "that's what my vape tastes like" 
.....When you smell something good, and you think to yourself "I could make that an awesome vape flavor!"
You know you're a vaper when...
...When you know the wattage of your mod instantly, but have to ponder the wattage of your computer's power supply.
...if you have a "what's new" bookmark on your browser to a vape shop.
...You save all your old juice bottles thinking... when I finally learn to make my own juice.......
...You accessorize and match your mod/atomizer, yet mix-match your socks.
...you have 15 screwdrivers in your house, but five are considered ONLY vaping gear.
...you become a cotton ball connoisseur.
...You realize how many watts your power supply is from the first comment, and start thinking of ways to turning it into a stationary vape gear.
When you spend an hour at the dining room table with your kanthal, tweezers, nail clippers, dremel, mesh, syringe, a roll of paper towels, ohms checker, multimeter, a bottle of juice, a torch, little pliers, various drill bits, and a monster energy drink, trying to nail a photogenic build that's worthy of posting on ECF, when your S.O. reminds you they need a ride to work in 5 minutes.
It's only then that you realize you have nothing capable built and toss together a "good enough for the road build"
An hour later you come home toeverywhere, because ... that's what cats do when you've paid something else attention for too long.
It's a vapers problem.
MP
Not quite that bad in my case, but spent over an hour making sure I had good enough builds and wicking for a 4 day travel...
Also noticed your avatar looks kinda eerie when you put a left thumb over your face on you avatar pic... REALLY weird, man!