I think that I've done this before and set an alarm not for so long so that it will be an indication that I have to stop. And this isn't just only for the slots but also for other games that we'd like to play like crash, dice, etc. I agree that it's way more relaxing to have a time set and it won't suck out most of our time and will keep us a healthy and responsible gambler.
It's a good strategy to avoid becoming addicted, whether it's setting a time limit or budget, some games are really cool and engaging. Every day people play them with the hope of being the lucky one of the day, I hope to be one of those, although I play very few slot games and etc.
I have posted about this subject before and until now unfortunately betfury didn't change anything in the responsible gambling section. I think players should have more option to self exclude. Right now there is only the option to exclude yourself for hours/days up to a wekk, that's it. If you want a longer self exclusion you basically have to self exclude your account indefinitely. 1 week definitely is not enough in my opinion. Other site over a month, 3 months, 6 months and so on, that's much better. 1 week is hardly enough time for a breather and if you don't want to lose your account process (VIP level) players will choose to self exclude for 1 week tops. Also if you do one week you can't even do it for another one since you are only allowed to self exclude for 7 days within a month.
I honestly believe betfury should change this since it would be much better for players with problematic gambling behaviors. Hopefully they will read here and might consider some changes!