Luckily, never my house. I have been on several working fires from lightning tho.
Weirdest call I can remember from lightning. A call came in during a thunderstorm for smoke in the building of a two story, single dwelling house. We could smell the light smoke inside mostly a master bedroom area, but could not find anything inside. We searched outside and I found a very small burn mark the size of a pencil in the wood siding, about 10' off the ground and about 5 feet down from the roof. We pulled a ladder and pulled the wood side off, sure enough, there was the problem. Seems lightning hit the rain gutter on the corner and traveled down the inside of the downspout. Went through the side of the metal spout, then when into the siding about 6" away from the spout where the small fire just smoldered and went out. Luckily never extending into the home Dwelling fires caused by lightning are tricky to find due to the erratic path of the lightning even when it hits. I suggest calling 911 right away if your in doubt for these types of things.