How big of a deal is it if I overstay by a few hours? I have a flight to Buenos Aires on Sept 3rd at 11am out of Bangkok, and I'm authorized to stay in Thailand up to the 2nd (via an extension of a SETV, so I can't just do an extension to buy more time beyond the 2nd). I want to come back to Thailand 3 weeks later via Bangkok and I want to do what I can now to avoid having problems when I'm facing Bangkok immigration. I've been in Thailand for 2.5 years on tourist visas and border bounces, but I have a new passport (received in January) that only shows 2 SETVs (one of those being from the previous passport) and a border bounce to Laos. So should I do a border bounce before the 2nd?