[keith123]

yeah, don't mention that you played poker professionally because that perfectly explains why you left your other jobs, and why you might leave this job. you can tell the interviewers all day that you are done playing poker, but that will just sound like an alcoholic saying he is done drinking. you might run into a decision-maker that plays poker on weekends (doubtful really), but none of them play professionally.

i'd go with the the family business lie, personally. but if a lie is a reasonable option, i always take it. if you say travelling, you better sound convincing when they ask you about your experiences and what you learned abroad.