MSDS can be quite deceptive, try the MSDS for Sodium Chlorine (table salt!) you'll find that it will cause cancer, care should be taken to avoid skin contact, wash hands with soap and plenty of water etc. I've handled gallium quite extensively, and personally know of people who have actually intentionally swallowed up to 10 grams of gallium without any side effects. Gallium is even considered a nutrient, is used in medics as a scan (gallium is injected in the blood stream). So it's totally safe to handle gallium! even water can be toxic if you drink huge amounts! just keep your wits, and you're totally fine.