[<Stephen>]

Spoiler

you need to open a closed door to go through the barrier;;; where with an open door there is no barrier
so you can walk through a closed door but you cant work through an open door

 

[Charlotte59]

Spoiler

Because you're an umbrella

 

[Victor Jackson]

Spoiler

Umbrella

 

[Milliemaree]

Spoiler

An umbrella

 

[Margaret H Jackson]

Spoiler

A Key

 

[Bob Patterson]

Spoiler

An umbrella that is open

 

[Janelles]

Spoiler

My first thought was a key,
But maybe an umbrella also fits the clues

 

[Single]

Spoiler

You can’t walk through a door already open.

 

[Robyn M for Mary]

Spoiler

a Key or an unbrella

 

[Buzzy]

Spoiler

Because I'm an UMBRELLA!

 

[Virgoros]

Spoiler

An umbrella

 

[Jasmine]

Spoiler

Umbrella

 

[Barb28]

Spoiler

Umbrella

 

[KenBruce]

Spoiler

Because you're an umbrella

 

[Ginny Burke]

Spoiler

The door key

 

[chezna]

Spoiler

Umbrella

 

[IJH]

Spoiler

Umbrella

 

[MIZMAC]

Spoiler

If Iam open I am too wide to go through the door

 

[SandraD22]

Spoiler

A key

 

[Cathy 61]

Spoiler

When you’re an umbrella