Any better ideas than mine on how I won't have to hold my brother's baby?

I've never been a kid person. I just don't get it. I don't like acting weird and making strange voices or faces to a kid or having to hold it and deal with all the grime. My brother and sister-in-law had a kid a few months ago and now my whole family is fawning over it like its the next J.C.! I hate it cause they all expect me to act the same. I'm glad they have the kid and all but that doesn't change the fact that I don't really care for babies or kids. My brother told my mom he was upset that I didn't like his baby. She tipped me off so the next time we were all together I tried my best to get into it. My mom had me hold the baby but it got boring FAST! Then I had to feed it a bottle, which was just weird. The whole time I hated it. In the end I was hoping they would take it but they said they would have me hold it unless it started crying. I had a great idea and starting pinching and twisting the skin on the back of his arm so he would cry and they would take him. He didn't even notice at first cause he was sleeping from the bottle but when he woke up he started screaming and they took him. I was really glad. I feel kind of bad but I needed to be done with that kid. Are there better ways to go about this? I feel like it might be wrong to intentionally hurt a baby just to get rid of him but I cant risk getting shat on or having to deal with him when I'd rather be doing something else. Any better ideas?