Worst experience was my first job after study. They told me at the interview that the job has very low travel activity... "we are doing most of the projects in-house...just traveling to the customer now and then for kick offs or when the software has to be trained"

A half year later I had to travel every fucking week to the customer. Fixing shitty code from a freelancer who never worked in a team, in a language I've never used before (they told me the first day at the customer). Don't get me wrong, I love learning new stuff but this project and architecture was a totally fucked up mess. Flew every monday to the customer (had to get up at 4am monday morning to get the flight) and friday back. Quit the job after living 3 months from a fucking suitcase.