sidetrack
verb
[ ˈsʌɪdtrak ]
• cause (someone) to be distracted from an immediate or important issue.
• "he does not let himself get sidetracked by fads and trends"
• direct (a train) into a branch line or siding.
• "the train is sidetracked on to a line leading to a terminal"
sidetrack
noun
• a minor path or track.
• "the horse took a sidetrack which led uphill"