(Image credit: Paramount)

There are some things you can always rely on in "Star Trek". Vulcans are rarely great company at parties, for example, and you can be approximately 93% certain that the alien you're about to meet will be more-or-less human in form — give or take a few adornments around the forehead area.And, just as most holodeck adventures turn out to be bad for the blood pressure, going on vacation is never as restful or relaxing as it's supposed to be. In fact, most starship crews would be better off saving the "out of office" for another day.SPOILERS AHEAD! ANYONE YET TO WATCH "HUMAN BEST FRIEND" SHOULD PROCEED WITH CAUTION TO AVOID VIOLATING TEMPORAL PRIME DIRECTIVES.That said, it's entirely understandable that the members of the Enterprise's Alpha Shift (aka the usual bridge crew) would want to take a break. They've been working non-stop for months, are on their way to mediate some potentially stressful peace negotiations, and — in the meantime — the mostly unseen members of Beta and Gamma Shifts have managed to sneak in some R&R of their own. But a quick trip through Starfleet history would tell them Pike and co's communal jolly in "Human Best Friend" (the latest episode of "Strange New Worlds" season 4) was doomed from the moment their shuttlecraft touched down.Even James T Kirk and the Original Series gang take a brief sojourn away from their famous five-year mission. In aptly named season 1 episode "Shore Leave", the crew beam down to a theme park planet that was channelling "Westworld" several years before the 1973 movie unleashed a gunslinging android named Yul Brynner.