Conclusion
Getting scratched by your own dog can happen a lot, which is why it is important that your dog is on the rabies vaccine and you can also train it to be gentler. The greater risk is in been scratched by a wild or domesticated dog that is not your own.
References
[1] https://www.cdc.gov/capnocytophaga/index.html
[2] https://my.clevelandclinic.org/health/symptoms/10880-fever
[3] https://my.clevelandclinic.org/health/diseases/4108-diarrhea
[4] https://www.cdc.gov/vaccines/hcp/vis/vis-statements/rabies.html
[5] https://my.clevelandclinic.org/health/diseases/15345-paralysis