Funny question, but in the US does 'grabbing' something not have a bad connotation? When I hear 'grab a donut' my English mind sees you smashing your fist through the glass of the counter, taking a doughnut, and running off.
It may even have that connotation, but even so, using it for flair is perfectly acceptable. In fact, there's nothing bad about your mental image, as it would only be humorous.
