Soooo, I am an Idiot! I get a call this morning from a guy with a tree thru his roof and into the attic. I am coming off a 48hr shift at the fire dept., but Me being me I say sure Ill come by and check it out. I get over to the house and find a Hackberry on the roof with one limb( about 8" around) stuck into the attic. The feeder lines for the neighbors house are stretched to the max due to some limbs, and it is 90 degrees and about 95% humidity at 7:45 in the AM. So what do I do --- I say sure Ill run to the shop grab my stuff and be back in a bit. I get home and the wife tells me Im nuts(why is she always right)?? I get my gear and run back over to the house trying to beat the rain that is heading our way. When I get there the roofer is standing there and says "how long till I can get up there and fix the roof" . So I tell him about 2 hrs. I get on the roof and go to cutting, and all is well- for about 45 min. I get this bad feeling in my gut, not the kind of feeling that says hey something is wrong. The kind of feeling that says you fought 3 fires and ran 12 EMS calls in the last 48 hrs, and had about 32oz of water in that time. I was doubled over and felt like I was going to poop,die,and vomit all at the same time. Then just for good measure my head starts pounding, and my calves cramp up. I finally get to a normal standing position and guess what, Now Im so dizzy Im scared Im going to walk off the side of the roof. After about 10 more min homeostasis set back in and I make it to the ground only to find I left the water can in the shop! I get a cup out of my truck and find a water hose and ran the homeowners bill up to a commercial rate for the month. After drinking and sitting for a while I feel super, I got this! 10 min later round 2! I did this for the next 45 min and was able to get all the brush off the roof and rig and stand the tree back up so the roofer could do his thing. While he was working I loaded my stuff and went to a diner down the road and sat in the AC and drank like a parched camel. I made some phone calls and finally got one of my guys to answer and he said he would be there asap. At 3:45 pm he got there. It took 30 min to finish once he made it, and I came home and drank, and drank, and drank, ate a couple of bites at dinner and Im going to bed. As a back ground to this, I have lived in Texas for 36 yrs. I have had heat exhaustion 2 times, and a heat stroke 1 time. I know better! Be careful guys, the heat will get you every time. Take breaks, drink, sit in the shade. I know that time is money, but the bill for my "little 12 hr stay in the ER for my heat stroke" just shy of 6,000.00. It sure does cut into the profits. I hope yall have a great day, climb one for me,--Ill be at the fire house.