![Somewhere between tool using
and cave painting...
Somewhere between tool using
and cave painting...](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Somewhere between TOOL using
and cave painting...
The Big Bang Theory Season 1, Episode 11
![...and tried to build
a nuclear reactor in the tool shed.
...and tried to build
a nuclear reactor in the tool shed.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
...and tried to build
a nuclear reactor in the TOOL shed.
The Big Bang Theory Season 8, Episode 23
![Yeah? So? Be a tool.
Yeah? So? Be a tool.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Yeah? So? Be a TOOL.
The Big Bang Theory Season 2, Episode 2
![Yeah, it's another fish
with a tool on its head.
Yeah, it's another fish
with a tool on its head.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Yeah, it's another fish
with a TOOL on its head.
The Big Bang Theory Season 6, Episode 2
![No, you're a tool I was using
to make my point.
No, you're a tool I was using
to make my point.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
No, you're a TOOL I was using
to make my point.
The Big Bang Theory Season 6, Episode 18