It seems that whenever the Sliders "get involved" on an earth they visit, trouble befalls them. Sometimes, they have no choice: in "The Exodus," for example, it would have been silly for them to sit around and not try to help when the pulsar threatened the world. Same with "End of Days."
But often, just minding their own business would save them much heartache, the loss of the timer, getting threatened by "bad guys," getting into fights, etc.
Obviously, the out-of-universe reason is that there wouldn't be much of a show if all the Sliders did was walk peacefully down the streets, shop at stores and wait quietly until the next slide. But what is the canon reason? I realize that they're explorers and such, but you'd think that after facing death or personal injury for the umpteenth time that they'd be a little less willing to get involved all the time.