Especially in our younger, testosterone-driven days.
Thankfully, my wife asked about my old AccuJac early on in our relationship. And fully understood not only my need to get my rocks off, but my occasional desire to simply enjoy the sensations I wanted, when I wanted, how I wanted, for as long as I wanted...without having to satisfy her.
But, honestly, there is no disrespect to anyone in the act of masturbation. No matter when - or where - it takes place.
Or even how.