First timer here. Doing a DIY tile job basically by myself in a kitchen reno I’m doing for my parents. A family member of mine wanted to ‘help out’ so I let them lay a couple rows of tile while I was away. Unfortunately they didn’t clean the grout lines AT ALL, even though we SPECIFICALLY TALKED ABOUT THAT. I spent half a day cleaning up their mess but I ended up chipping a few tiles. I haven’t grouted yet, can I get up just these chipped tiles and put down new ones in their place? How hard is that to do? Or should I just say screw it and people won’t notice?