#61067 - safe, artist:gikima, derpy hooves, doctor whooves, time turner, earth pony, pegasus, pony, g4, 4koma, comic, doctor who, doctor whooves is not amused, female, knock knock joke, male, mare, prank, stallion, the doctor, unamused

Full size BBcode Copy
[img]https://derpicdn.net/img/2012/7/29/61067/full.png[/img] [url=https://derpibooru.org/images/61067]View on Derpibooru[/url] - [url=http://sketchcloud.tumblr.com/post/22117796760/ugh]Original source[/url]

Thumbnailed BBcode Copy
[img]https://derpicdn.net/img/2012/7/29/61067/medium.png[/img] [url=https://derpibooru.org/images/61067]View on Derpibooru[/url] - [url=http://sketchcloud.tumblr.com/post/22117796760/ugh]Original source[/url]