When you have photoshop skills, you can do most anything. If you’re a dad with awesome photoshop skills, you’d scare your mother to death – especially when it involves putting her granddaughter in dangerous situations.

Stephen Crowley has got to be the meanest dad. He uses his Photoshop skills on his daughter to frighten his mom. His works of art are almost real it’s so impressive. His daughter, Hannah, has been in many dangerous situations like holding a knife, and driving along the highway.

Crowley posted the photos on Reddit and it quickly went viral. Check out the photos below and see why.

Stephen Crowley has got to be the meanest dad.

He likes to Photoshop his daughter Hannah into dangerous situations.

Crowley initially intended to prank his relatives and his mom.

But the Dublin-based Dad has a bigger reason for doing the project.

Stephen Crowley is dad who photoshops his daughter

The Dublin-based dad intended to give his relatives, especially Hannah’s grandmother, a great scare but when he tasted Internet fame, he turned it into an opportunity to raise awareness.

Hannah was born with a hemophagocytic lymphohistiocytosis, a very rare immune disorder in which the body produces too many activated immune cells. Hannah had to be in and out of the hospital for six months to receive chemotherapy and then a bone marrow transplant.

Crowley told CBS News via email that there are 27 million bone marrow donors worldwide but only three of them matched Hannah. It was an anonymous German lady who donated the bone marrow.

Crowley used his Internet fame as an opportunity to raise awareness.

Hannah was born with a very rare immune disorder that she had to be in and out of the hospital for six months.

Hannah had to have bone marrow transplant. Through Stephen’s popularity, he was able to find a donor.

Being a professional designer, Crowley thought of starting the Photoshop project with Hannah.

“Considering how much she had been through in her first year and how delicate she was, I thought it would be funny to worry friends and family with the image of her on the fence near the lake. It got some great reactions, some who thought it was real and weren’t too happy, so I decided to make more.”

Hannah has since been on the road to recovery.

Check out more of Stephen Crowley’s photos on Instagram.