Very nice, there are actually very weird and strange habits developed while masturbating.
I have done an anonymous research asking for weird masturbating habits amongst sexually active 18+ males as part of my graduation paper. Sounds weird, was hard not to smile while handing over the paper titled "Men and their habits" with some innuendo pictures in the background.
Conclusion: don't ever feel weird while jacking off or doing it your way, trust me. From spewing into your hands and not going around washing them for the rest of the day or into jeans while sucking itself up afterwards to public trainstations masturbating in wide raincoats to coming into the plants at work when everyone is gone just to name a few ones.
Too bad it's in Dutch, otherwise I would have posted it here for your amusement